Tolong pake cara pleaseee

Tolong pake cara pleaseee

luas lingkaran

$frac{3}{4} times pi times {r}^{2}$

jadi,

$frac{3}{4} times frac{22}{7} times {28}^{2} \ = frac{3}{4} times frac{22}{7} times 784 \ = 1848 : {cm}^{2}$

jadi jawabannya C.

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