jawab ya kaka pleasee

L persegi = s x s
= 7 x 7 = 49 cm2
L trapesium = jmlh sisi sejajar x 1/2 tinggi
= (7 + 12) x 1/2(15-7)
= 19 cm x 4 cm
= 76 cm2

luas gabungan = L persegi + L trapesium
= 49 cm2 + 76 cm2
= 125 cm2 (C)