Question

5. If the circumference of a circle Is 188.4 cm. Find It's radius.(Take n as 3.14)
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Answer 1

Answer:

2826 squre cm

Step-by-step explanation:

Circumference of crcle = pi*d

We know that pi = 3.14

188.4 = 3.14*d

Divide to each side by 3.14.

188.4/3.14 = 3.14*d/3.14

60 = d

Diameter = 60cm

We know that r = d/2

r = 60/2

Radius of circle = 30cm

Area of circle = pi *r^2

= 3.14*30*30

= 3.14*900

Area of circle = 2826 squre cm

Answer 2

Step-by-step explanation:

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