If the radius of a circle is 14cm, then find the area of the circle .

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area of semicircle = 1/2 ×pi ×r^2

1/2 × 22/7 × 14

22×14 cm^2

308cm^2

Area of semicircle = ½ × π × r²¹

= ½× 22/7 × 14

= 22 × 14

= 308 cm²

Step-by-step explanation:

In the second step 14 will be cancelled by 7 because 14 comes in 7 yables if we multiply by 2 then the 2 will be multiplied by the number 22 then it becomes 44 after that ½ and 44 will be cancelled out , then simply multiply 22 × 14, here you got your answer dear. answer = 308cm².

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for lenght put the value in formula of length of an sector...

let take the angle x

sector area = r2 × (central angle in radians ÷ 2).

102.7= 14^2 * ( X ÷ 2)

102.7/176= X /2

it will be 1.16

sorry I am in ninth class

so it may be wrong

but I tried my self

sorry I don't know the answer

Step-by-step explanation:

hi friend

hope this answer satisfies u

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thank u

steradian =A/r2

A=Φr2

A=100×(14/100)^2

A=100×0.0196

A=1.96m^2

answer:

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