ada yang tau jawabanya
Jawaban:
a. K = ?
K = 320 : 20
K = 16 (lebar)
K = 2(p+l)
K = 2 x (20+16)
K = 2 x 36 = 72 cm²
b. K = ?
K = 525 : 15
K = 35 (panjang)
K = 2(p+l)
K = 2 x (35+15)
K = 2 x 50 = 100 cm²
c. K = ?
K = 1.560 : 52
K = 30 (lebar)
K = 2(p+l)
K = 2 x (52+30)
K = 2 x 82 = 164 cm²
d. K = ?
K = 1.288 : 28
K = 46 (panjang)
K = 2(p+l)
K = 2 x (46+28)
K = 2 x 74 = 148 cm²
