Question

Find the area of sector of a circle then the radius of a circle is 21 and angle of sector 60​

Answer 1

Area = 60/360×pi r*r

=>1/6×22/7×21×21

=>231 cm^2

Hope It helps :)

Answer 2

Answer:

$Area \: of \: the \:sector(A)\\= 231\:square \: units$

Step-by-step explanation:

Dimensions of a sector:

radius (r) = 21 ,

angle of a sector (x) = 60°,

$Area \: of \: the \:sector(A)\\= \frac{x}{360}\times \pi r^{2}\\= \frac{60}{360}\times \frac{22}{7}\times 21^{2}\\=\frac{1}{6}\times 22\times 21\times 3\\=11\times 21\\=231\:square \: units$

Therefore,

$Area \: of \: the \:sector(A)\\= 231\:square \: units$

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