luas bangun di samping adalah...cm2(p=3,14)

r= 1/2×d
= 1/2×40
= 20cm

L1 = πr²
= 3,14×20²
= 3,14×400
= 1256 cm²

L2 = (45+75) × 40/2
= 120 × 20
= 2400 cm²

L= 1256+2400
= 3656 cm²

Maaf bila salah