Page 22 - MODUL MATEMATIKA
P. 22
KUNCI JAWABAN
1. Cari panjang persegi panjang, yakni:
L = p x l
24 cm² = p x 4 cm
p = 6 cm
K alas = 2(p + l)
K alas = 2(6 cm + 4 cm)
K alas = 20 cm
L = 2 x L alas + K alas . t
L = 2 x 24 cm² + 20 cm x 10 cm
L = 48 cm² + 200 cm²
L = 248 cm²
