Question

Luas bangun datar pada Gambar disamping bawah ini adalah

Answer 1

L Trapesium = ½ × (a+b)×t
= ½ × (16 cm + 9 cm) ×14 cm
= ½ × (25 cm) × 14 cm
=25cm×7cm
=175 cm²

L Setengah lingkaran = ½ ×22/7×7×7
= 11×7
=77 cm²

LT +LL = 175 cm² + 77 cm² =252 cm²


#Maaf kalau salah.Semoga membantu

Answer 2

4. L = L trapesium + L ½lingkaran
= ( ½.[a+b].t) + ( ½.π. r²)
= (½.[9+16].14) + ½.22/7. 7. 7
= 175 + 77
= 252 cm² (A)

5. L = L segitiga + L persegipnjng
= ½.a.t + p.l
= ½. 11. 10 + 10. 5
= 55 + 50
= 105 cm² (A)