find the radius and the circumference of a circle is 31.4cm find the radius and the Area of the circle take pie as 3.14 cm
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circumference of circle =31.4cm
2πr=31.4
2×3.14×r=31.4
r=31.4÷(2×31.4)
r=5cm
area of circle =πr²
=3.14(5)²=78.5cm²
your answer is 5cm & 78.5cm² respectively
I hope it will give you idea
2πr=31.4
2×3.14×r=31.4
r=31.4÷(2×31.4)
r=5cm
area of circle =πr²
=3.14(5)²=78.5cm²
your answer is 5cm & 78.5cm² respectively
I hope it will give you idea
MOSFET01:
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you have given a good answer too but his is also best
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