Regular Questions
1. Find the area of a square park whose perimeter is 320 m.
2. Find the height x if the area of the parallelogram is 24 cm2 and the base is 4 cm.
3. Find BC, if the area of the triangle ABC is 36 cm2 and the height AD is 3 cm.
4. What is the circumference of a circle of diameter 10 cm (take π = 3.14)?
5. What is the circumference of a circular disc of radius 14 cm (use π = 22/7)?
6. Find the area of a circle of radius 30 cm (use π = 3.14).
7. Diameter of a circular garden is 9.8 m. Find its area.
8. Find the circumference of the circles with the following radius (take π = 22/7):
- (a) 14 cm
- (b) 28 mm
- (c) 21 cm
9. Find the area of the following circles, given that (take π = 22/7):
- (a) radius = 14 mm
- (b) diameter = 49 m
- (c) radius = 5 cm.
10. The radius of a circular pipe is 10 cm. What length of a tape is required to wrap once around the pipe (π = 3.14)?
11. Sudha divides a circular disc of radius 7 cm in two equal parts. What is the perimeter of each semi-circular shape disc (use π = 22/7)?
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