No 21 tolong dijawab pakai cara dicari luas bangun yang diarsir

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Lingkaran :
- d= 14 cm > r= 7 cm

Persegi Panjang :
- p= 21 cm
- l= 14 cm

Ditanya= L arsir?

LP= p x l
LP= 21 x 14
LP= 294 cm²

LL= πr²
LL= 22/7 x 7 x 7
LL= 22 x 7
LL= 154 cm²

L arsir = 294-154 = 140 cm²

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★ Anti Copas-Copas Club ★

L Persegi Panjang = p * l
=21 cm * 14 cm =294 cm²
L Lingkaran =Diket = r =d : 2=14 cm : 2 =7 cm
L=π * r * r =22/7 * 7 cm * 7 cm
L=154 cm²
L arsir =294 - 154 =140 cm²
Jadi, L arsir =140 cm²