Question

hitunglah keliling lingkaran soal : 1 . r = 30 3 . r = 65 2 . d = 40 ​

Answer 1

Penjelasan dengan langkah-langkah:

keliling = r x phi x 2

= d x phi

1. r = 30

k = 30 x 3,14 x 2

= 30 x 6,28

= 188,4

2. r = 65

k= 65 x 3,14 x 2

= 65 x 6,28

= 408,2

3. d = 40

k = 40 x 3,14

= 251,2