Question

If area of quadrant of a circle is 38.5 cm2 then find its diameter (use π = 22/7 )​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

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Step-by-step explanation:

Area of quadrant is =

$\frac{\pi}{4} \times {r}^{2}$

$38.5 = \frac{\pi}{4} \times {r}^{2}$

$\frac{385}{10} \times 4 = \frac{22}{7} \times {r}^{2}$

$\frac{154 \times 7}{22} = {r}^{2}$

$7 \times 7 = {r}^{2}$

$r = 7$

$d = 2 \times r$

$d =2 \times 7 = 14$

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