1. What is the sum of any three angles of a rectangle?

2. Find the perimeter of a square whose area is equal to 64 square cms.

3. Angles of a triangle are in the ratio 1 : 2 : 3. What is the measurement of the smallest angle?

4. Two angles of a triangle are 50° and 80°. Find the measure of the third angle.

5. What is the complementary angle of 30°?

6. The length of a rectangle is twice its breadth. If its perimeter is 18 cms. Find its breadth.

7. Find the supplementary angle of 120°.

8. Three angles of a quadrilateral measure 30°, 120° and 60°. Find the measure of the fourth angle.

9. Find the complementary angle of 62°.

10. What is the sum of any two angles of an equilateral triangle?

Answers:

1. 270°

2. 32 cms

3. 30°

4. 50°

5. 60°

6. 3 cms

7. 60°

8. 150°

9. 28°

10. 120°