- Ncert maths exemplar class 7
- Ncert exemplar class 7 maths lines and angles
- Ncert exemplar class 7 maths algebraic expressions
- Ncert exemplar class 7 science
- Ncert exemplar class 7 maths simple equation
- Ncert exemplar class 7 maths exponents and powers
- Ncert exemplar class 7 maths perimeter and area
- Ncert exemplar class 7 maths rational numbers
Ncert maths exemplar class 7Exercise 7. Question 1: Which of the following is not a criterion for congruence of triangles? Solution: c We know that, two triangles are congruent, if the sides and angles of one triangle are equal to the corresponding sides and angles of the other triangle. So, SSA is not a criterion for congruence of triangles. Question 8: If two sides of a triangle are of lengths 5 cm and 1. Solution: d Given, the length of two sides of a triangle are 5 cm and 1. Give reason for your answer. We know that, two triangles will be congruent by AAS rule, if two angles and the side of one triangle are equal to the two angles and the side of other triangle. Is the statement true? Solution: No, because in the congruent rule, the two sides and the included angle of one triangle are equal to the two sides and the included angle of the other triangle i. Solution: No, because sides must be corresponding sides. Question 5: Is it possible to construct a triangle with lengths of its sides as 4 cm, 3 cm and 7 cm? Solution: No, it is not possible to construct a triangle with lengths of its sides as 4 cm, 3 cm and 7 cm because here we see that sum of the lengths of two sides is equal to third side i. As we know that, the sum of any two sides of a triangle is greater than its third side, so given statement is not correct. Solution: No, we know that two triangles are congruent, if the sides and angles of one triangle are equal to the corresponding side and angles of other triangle. Which side of this triangle is the longest? Is it true to say that perimeter of the triangle is greater than 2AM? Give reason for your answer? Question Is it possible to construct a triangle with lengths of its sides as 9 cm, 7 cm and 17 cm? Solution: No. Hence, it contradicts the property that the sum of two sides of a triangle is greater than the third side.
Ncert exemplar class 7 maths lines and angles
Students can check these links to know more about study material. There are no shortcuts of becoming the class topper. The only way to be the best is to discipline, study hard and learn the tricks of the teachers. If you want to become the top of the class then you need to make sure that you are organized and disciplined. Our Pasts — II History 3. Our Environment Geography. The student must focus on grammar and writing, as these are sections in which students tend to lose the maximum number of marks. Practice writing sections of previous papers, along with grammar questions like editing and omission of paragraphs. The latter requires intensive practice, and demand that the students be thorough. Scoring good marks in Social science is not a big task but students have to practice consistently. The concept matter will be a lot clearer to you once you understand — for instance — how the government works, or what happened during the Indian independence period. Understanding the subject will help you retain and recall effectively during the exam. Plus, you will be able to relate it to current events and pinpoint historical trends from a panoramic standpoint. Our top expert will serve you with the best possible solution. Save my name, email, and website in this browser for the next time I comment. Notify me via e-mail if anyone answers my comment. Contents hide. How many subjects in Class 7th? How can I top in Class 7th? What are the important section of Social Science. How to Prepare English Subject? How to score good marks in Social Science? Leave a comment below or Join Edufever forum Cancel reply Comment Name Email Save my name, email, and website in this browser for the next time I comment. Click Here.
Ncert exemplar class 7 scienceThese solutions are updated for current session We have done on a number line when we add a positive integer, and we move to the right. To add a negative integer, we move to the left. Similarly, subtracting a positive integer, we move to the left and to subtract a negative integer, we move to the right. In class 7 Maths Chapter 1, we have to use these facts in applications of daily life. In Class 7 Maths Chapter 2, we will learn about fractions and decimals along with the operations of addition and subtraction on them. We also learnt how to multiply two decimal numbers. While multiplying two decimal numbers, first multiply them as whole numbers. Count the number of digits to the right of the decimal point in both the decimal numbers. Add the number of digits counted. Put the decimal point in the product by counting the digits from its rightmost place. The count should be the sum obtained earlier. We will also study the operations of multiplication and division on fractions as well as on decimals. There are methods for how two fractions are multiplied by multiplying their numerators and denominators separately and writing the product. How to obtain a reciprocal of a fraction is obtained by inverting it upside down. This concept is also used in Chapter 4 Simple Equations also. In Chapter 3 of Class 7 Maths, we will know about the collection, recording and presentation of data. Before collecting data, we need to know that the data that is collected needs to be organised in a proper table so that it becomes easy to understand and interpret. We will discuss the average that is a number that represents or shows the central tendency of a group of observations or data along with arithmetic mean, Mode, which is another form of central tendency or symbolic value and Medium. Median is also a form of symbolic value. It refers to the value which lies in the middle of the data with half of the observations above it and the other half below it. Bar graph and using bars of uniform widths and Double bar graphs to compare two collections of data at a glance is also given in 7th Maths Chapter 3 Data Handling. In the end, there are questions based on the probability that describes the situations in our daily life, that are certain to happen, some that are impossible and some that may or may not happen. Chapter 4 of Class 7 Maths describes an equation which is a condition on a variable such that two expressions in the variable should have equal value. It also tells about the value of the variable for which the equation is satisfied is called the solution of the equation. Addition or subtraction on both the sides equally in an equation remains it unchanged. This is the property which is used to solve the equation. Transposition of a number has the same effect as adding or subtracting the same number to both sides of the equation. Class 7 Chapter 4 Simple Equations describes here, how to construct simple algebraic expressions corresponding to practical situations and using the technique of doing the same mathematical operation on both sides, we can build an equation starting from its solution. We already know that a line segment has two endpoints and a ray has only one endpoint.
Ncert exemplar class 7 maths simple equation
Question 3: x is a non-zero rational number. Question 7: Solution:. Question 8: The standard form of the number is a Question 9: Solution:. Question Which of the following is equal to 1? Question In standard form, the number Hence, Question Solution:. Question Which of the following is not true? Question Which power of 8 is equal to 2 6? In questions 41 to 65, state whether the given statements are True or False. Question In the standard form, a large number can be expressed as a decimal number between 0 and 1, multiplied by a power of Question 4 2 is greater than 2 4. Solution: False. Question 4 9 is greater than 16 3. Question Arrange in ascending order. Question Arrange the following exponents in descending order. Solution: In descending order, the numbers are arranged from largest to smallest. Question By what number should -4 5 be divided so that the quotient may be equal to - 4 3? Solution: In order to find the number, which should divide - 4 5 to get the quotient - 4 3we will divide - 4 5 by - 4 3. Question Find the value of Solution:. Question Express the following in usual form. Question Express the following in exponential form. Question How many times of 30 must be added together to get a sum equal to 30 7. Question Express each of the following numbers using exponential notations, Using prime factorization ofwe have Solution:.