Find the diameter of a circle whose area is 13.6 metre square
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Answer:
4.2 m
Step-by-step explanation:
Let r be the radius of Circle.
Diameter of circle d = 2r.
Formula for area of Circle = πr² = π (d/2)² = πd²/4.
Given, Area of circle = 13.6 m²
=> πd²/4 = 13.6
=> d² = 13.6 * 4 * 7/22 = 17.31
=> d = √17.31 = 4.16 ~ 4.2 m.
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