ML Aggarwal Class 7 Solutions Chapter 10 Lines and Angles Check Your Progress for ICSE Understanding Mathematics acts as the best resource during your learning and helps you score well in your exams.
ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 10 Lines and Angles Check Your Progress
Question 1.
Find the supplementary angle of each of the following angles:
(i) \(\frac { 1 }{ 2 }\) of 90°
(ii) \(\frac { 3 }{ 7 }\) of 280°
Solution:
Question 2.
How many degrees are there in an angle which is one-fifth of its complement?
Solution:
Question 3.
If two angles are supplementary and one angle is 5° more than four times the other, find the angles.
Solution:
Question 4.
The given diagram shows two intersecting straight lines. Find the values of x, y and z.
Solution:
Question 5.
In the given diagram, lines AB and CD intersect at O. If ∠1 + ∠3 = 78°, find the size of ∠2.
Solution:
Question 6.
(a) In the figure (i) given below, l || m. If ∠5 = 65°, find all other angles.
(b) In the figure (ii) given below, l || m. Find the values of x, y and z.
(c) In the figure (iii) given below, l || m and p || q. Find the values of x, y and z.
Solution:
