Question

Luas bangun gabungan tersebut ada

A. 998 cm²
B. 1.008 cm²
C. 1.286 cm²
D. 1.296 cm²​

Answer 1

Verified answer

jajar genjang

• alas (a) = 48 cm
• tinggi (t) = 12 cm

luas = a × t

luas = 48 cm × 12 cm

luas = 576 cm²

layang-layang

• diagonal 1 (d1) = (48 : 2) + 12 = 36 cm
• diagonal 2 (d2) = 12 + 12 = 24 cm

luas = 1/2 × d1 × d2

luas = 1/2 × 36 cm × 24 cm

luas = 432 cm²

luas bangun gabungan

l = jajar genjang + layang-layang

l = 576 cm² + 432 cm²

l = 1008 cm²