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Froggy Jumps
Froggy Jumps

Mathematics grade 8

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Mathematics grade 8

Froggy Jumps

Played 2

About this activity

Area and sectors

Created by

Kenya

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Mathematics grade 8
 

Froggy Jumps

Mathematics grade 8Online version

Area and sectors

by Tr. Sam
1

What is the formula for the area of a circle?

2

If the radius is 7 cm, what is the area?

3

What is the radius of a circle?

4

Formula for area of a sector:

5

A circle has radius 6 cm. Find area of a 60° sector.

6

A 90° sector is what fraction of a circle?

7

A circle has an area of 314 cm². What is the radius?

8

A circle has radius 14 cm. What is the area of a 30° sector using π = 22/7?

9

The diameter of a wheel is 84 cm. What is the area of the wheel? (π = 22/7)

10

A sector has radius 12 cm and area 150.72 cm². Find the angle. (π = 3.14)

11

A circular garden has area 452.16 m². What is the radius? (π = 3.14)

12

A pizza has a radius of 20 cm. What is the area of a slice that forms 15° of the pizza? (π = 3.14)

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