Question

4. Find the diameter of a circle, whose area is: (i) 50.24 m² (ii) 314 m2
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Answer 1

Answer:

i)diameter of the circle with area 50.24 m²is the 8 m

ii) diameter of the circle with area 314 m²is the 20 m

Step-by-step explanation:

Let the radius of the circle be r and diameter is 2r.

i) area of the circle = πr² = 50.24 m²

r² = 50.24/3.14

r² = 16

r = 4

diameter= 2r = 2(4) = 8m

ii) area of the circle = π r² = 314 m²

r² = 314/π

r² = 314/3.14

r² = 100

r = 10

diameter= 2r = 2(10) = 20 m

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