Math, asked by venusdemor6751, 1 year ago

Find the area of a quadrant of a circle whose radius is 7 cm

Answers

Answered by Anonymous
18
Your answer !!

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Area\: of\: quadrant = \frac{π{r}^{2}}{4} \\ \\ radius = 7cm \\ \\ \frac{22}{7}(\frac{49}{4}) \\ \\ \frac{77}{2}

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Answered by 46omkar7
6

∴The \: area \: of \: quadrant =  \frac{{\pi} {r}^{2} }{4}   \\  \\\:\:\:\:\:\:\:\:\:\: \:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:=  \frac{\pi {7}^{2} }{4} \\  \\  \:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:=   \frac{\pi49}{4}  \\  \\\:\:\:\:\: \:\:\:\:\: \:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:=  \frac{( \frac{22}{7} )\times 49 }{4} \\  \\  \:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\: \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:= \frac{(22 \times 7)}{4}  \\  \\  \:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\: \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: =  \frac{154}{4} \\  \\  \:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\: \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   =\green{\boxed{\frac{77}{2}\:cm²\:\:or\:\:38.5 \: cm²}}

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