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Find the length of an arc of a circle of diameter 20 cm which subtends an angle of 45° at the centre?​

Answer»

\huge\underline\mathcal\green{QUESTION}

FIND the length of an arc of a CIRCLE of diameter 20 cm which subtends an angle of 45° at the CENTRE?

\huge\underline\mathcal\red{Answer}

length \: of \: arc = 2\pi \: r  \frac{theta}{360}  \\                  = 2 \times  \frac{22}{7}  \times  \frac{42}{2}  \times  \frac{60}{360}   \\  = 22 \: cm

\huge\underline\mathcal\purple{BTS \: EXO}



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