Page 62 - buku saku

a² + b² = c²
6² + (20 - 12)² = c²
36 + 64 = c²
100 = c²
c = √100
c = 10
K = 20 + 10 + 12 + 10
K = 52 cm

7. Jajar Genjang

Buku Saku Matematika SD/MI - 53