hitunglah luas segi banyak berikut

L1(Persegi panjang) = p.l = 4 × 7 = 28 cm^2


L2(Trapesium) =

t trapesium = 12 - 7 = 5 cm

L2 = 1/2 × (a + b) × t
L2 = 1/2 × (8+4+10) × 5
L2 = 1/2 × (22) × 5
L2 = 11 × 5 = 55 cm^2

L gab = 28 + 55 = 83 cm^2