Question

solve the following
a.if a radius of a coin is 20 cm find its area.
b.prime mumbers between 30 to 55
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Answer 1

Step-by-step explanation:

a=

If r = 20 cm then the area of each side is 400 pi sq cm. Since a coin has 2 sides, the total surface area is 800 pi sq cm.

b =

31, 37, 41, 43, 47. Prime numbers are numbers that are divisible by only two numbers: 1 and itself. By this definition:

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