Cari keliling nya
Mapel : Matematika (Bab : Lingkaran)
BANTU BAGI YANG BISA
Mapel : Matematika (Bab : Lingkaran)
BANTU BAGI YANG BISA
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K.¼Lingkaran
= ¼ × 2 × π × r
= ¼ × 2 × 22/7 × 21
= ¼ × 44/7 × 21
= ¼ × 44 × 3
= ¼ × 132
= 33 cm²
UwU
dik. 1/4 lingkaran
r = 21 cm, d = 2r = 42 cm
π = 22/7
keliling
= 1/4 x dπ
= 1/4 x 42 x 22/7
= 33 cm