Question

Hitunglah jari jari lingkaran yang mempunyai keliling berikut! a. Keliling = 176 cm dan b. Keliling = 50,24 cm

Answer 1

Jawaban :
a. K lingkaran = 176 cm
2 x phi x r = 176
2 x 22/7 x r = 176
44/7r = 176
r = 176 / 44/7
= 176 x 7/44
= 28 cm

b. K lingkaran = 50,24 cm
2 x phi x r = 50,24
2 x 3,14 x r = 50,24
6,28r = 50,24
r = 50,24/6,28
= 8 cm

Semoga membantu

Answer 2

A. Kll = 176 cm
2 x phi x r = 176
2 x 22/7 x r = 176
44/7 x r = 176
r = 176 x 7/44
r = 28 cm

b. Kll = 50,24 cm
2 x phi x r = 50,24
2 x 3,14 x r = 50,24
6,28 x r = 50,24
r = 50,24/6,28
r = 8 cm