A wire is bent in the form of a square of side 27.5 cm. It is straightened and then bent into the shape of a circle. What is the radius of a circle so formed??
Answers
Answered by
6
Answer:
the radius of a circle = 17.5cm
Step-by-step explanation:
The perimeter of the square is 4 * 27.5 = 110
Now the perimeter of square become the Circumference of the circle .
and we know that the Circumference circle = 2r
110 = 2 * 22/7 *r
r = 110*7/2*22
r = 17.5 cm
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Answered by
1
Answer:
As one side = 27.5 cm
=> Perimeter of 4 x 27.5 => 110 cm
Now, C = 2πr
=> 110 = 2πr
=> r = 110/2π = 55/π cm
Also as area = πr²
=> π(55/π)²
=>3025/π cm²
=> 962.9 cm
Step-by-step explanation:
Hope this answer will help you✌
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