Question

Luas bangun disamping adalah .. cm²

Answer 1

1) Luas Bangun = 3/4 × Luas lingkaran
L = 3/4 × 22/7 × 28 × 28
L = 3 × 22 × 4 × 7
L = 264 × 7
L = 1848 cm^2

2) L trapesium = 1/2 × (jumlah 2 garis sejajar) × tinggi
L = 1/2 × (16 + 18) × 11
L = 1/2 × 34 × 11
L = 17 × 11
L = 187 cm^2