Tolong bantu....makasih.....

Tolong bantu….makasih…..

Jawaban:

rumus luas lingkaran =

πr² atau ¼πd²

ket =

π = 3,14 atau 22/7

r = jari jari

d = diameter

$frac{22}{7} times {21}^{2} = frac{22}{7} times 21 times 21 = 1386$

$3.14 times {36}^{2} = 3.14 times 36 times 36 = 4069.44$

$3.14 times {20}^{2} = 3.14 times 20 times 20 = 1256$

$frac{1}{4} times frac{22}{7} times {56}^{2} = frac{1}{4} times frac{22}{7} times 56 times 56 = 2464$

$frac{1}{4} times frac{22}{7} times {84}^{2} = frac{1}{4} times frac{22}{7} times 84 times 84 = 5544$

$frac{1}{4} times 3.14 times {60}^{2} = frac{1}{4} times 3.14 times 60 times 60 = 2826$

semoga membantu

jadikan jawaban terbaik ya

kalo ada pertanyaan tanyakan di komentar