**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 cm^{2} and the base is 4 cm.

**3**. Find *BC*, if the area of the triangle *ABC* is 36 cm^{2} 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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