NCERT Solutions for Class 7 Maths Chapter 5

NCERT Solutions for Class 7 Maths Chapter 5 Lines and Angles Exercise 5.1 and Exercise 5.2 in English Medium and प्रश्नावली 5.1 and प्रश्नावली 5.2

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NCERT Solutions for Class 7 Maths Chapter 5

Class:7
Subject:Maths – गणित
Chapter 5:Lines and Angles

7 Maths Chapter 5 Solutions

7 Maths two exercises of Chapter 5 Lines and Angles solutions with description are given below. No login or password is required to access these solutions for the session 2020-21. Feel free to contact us for any inconvenience.




About NCERT Solutions for Class 7 Maths Chapter 5

In 7 Maths Chapter 5 Lines and Angles, we will study about various types of angles and their applications. We already know that a line segment has two end points. If we extend the two end points in either direction endlessly, we get a line. Thus, we can say that a line has no end points. On the other hand, a ray has one end point (starting point). An angle is formed when lines or line segments meet. Study about the following angles:
1. Complementary angles: When the sum of the measures of two angles is 90°, the angles are called complementary angles.
2. Supplementary angles: The sum of the measures of the two angles comes out to be 180°, then such pairs of angles are called supplementary angles.
3. Adjacent Angles: Angles having a common vertex, a common arm and the non-common arms are on either side of the common arm are called adjacent angles. Adjacent angles have a common vertex and a common arm but no common interior points.
4. Linear Pair: A linear pair is a pair of adjacent angles whose non-common sides are opposite rays.
5. Vertically Opposite Angles: when two lines intersect, the vertically opposite angles so formed are equal.




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Important Questions on Class 7 Maths Chapter 5

Find the angle which is equal to its complement.
Let one of the two equal complementary angles be x
Therefore, x + x = 90
or 2x = 90
and x = 90/2 = 45
Thus, 45 is equal to its complement.
ऐसा कोण ज्ञात कीजिए जो अपने संपूरक के समान हो।
माना कोण x अपने संपूरक कोण का समान है।
इसलिए, x + x = 180 [संपूरक कोण]
2x = 180
x = 180/2 = 90

अतः, 90 का कोण अपने संपूरक कोण के बराबर है।

Can two angles be supplementary if both of them are acute.
No, because sum of two acute angles is less than 180.
क्या दो ऐसे कोण संपूरक हो सकते हैं यदि उनमे से दोनों अधिक कोण हैं?
नहीं, क्योंकि दो अधिक कोणों का योग सदैव 180 से अधिक होता है।
Fill in the blank: If two adjacent angles are supplementary, they form a _______________.
Linear pairs.

NCERT Solutions for Class 7 Maths Chapter 5 Lines and Angles Exercise 5.1 in English
NCERT Solutions for Class 7 Maths Chapter 5 Lines and Angles Exercise 5.1 in English in pdf form
NCERT Solutions for Class 7 Maths Chapter 5 Lines and Angles Exercise 5.1 in English free download
NCERT Solutions for Class 7 Maths Chapter 5 Lines and Angles Exercise 5.1 in English all answers guide
7 Maths Chapter 5 Lines and Angles Exercise 5.2
7 Maths Chapter 5 Lines and Angles Exercise 5.2 download in pdf free
7 Maths Chapter 5 Lines and Angles Exercise 5.2 all answers guide
NCERT Solutions for Class 7 Maths Chapter 5 Lines and Angles Exercise 5.1 in Hindi
7 Maths Ex. 5.1 in hindi
7 Maths ch. 5 ex. 5.1 sols
ex. 5.1 class 7 maths
7 Maths ex. 5.2 in hidi
exercise 5.2 class 7
exercise 5.2 class 7 maths