Tolong Bantul pake cara​

Jawaban:

1. K = π×D

K = 22/7 × 14 = 44cm -¼ = 33cm

2. K = 3,14 ×16 = 50,24 – ¼ = 37,68cm

rumus keliling lingkaran

K = 2 π r

1. r=7

K=2×22/7×7

=2×22

=44

2 Dik:r=8

K=2×3,14×8

=50,24