The area of a circle is 314 cm2
. If π = 3.14, then its diameter is
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Answered by
4
Let 'r' be the radius of circle
area of the circle =314
Πr^2 = 314
3.14 × r^2 = 314
314/100 × r^2 =314
r^2 = 314 × 100/314
r^2 = 100
r = √100
r = 10
diameter of the circle = r ×2 = 10 ×2 = 20
area of the circle =314
Πr^2 = 314
3.14 × r^2 = 314
314/100 × r^2 =314
r^2 = 314 × 100/314
r^2 = 100
r = √100
r = 10
diameter of the circle = r ×2 = 10 ×2 = 20
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Answered by
6
Answer:
diameter = 20 cm
Step-by-step explanation:
Area of circle = πr²
Substitute the values and you get
314 = 3.14 x r²
314/3.14 = r²
r² = 100 cm
Therefore r = 10 cm and diameter = 2 x 10 = 20 cm
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