Luas bangun adalah??

LΔ = 1/2 × a × t
= 1/2 ×6 × 4
= 1/2 × 24
=12cm²

L persegi panjang = 6×4 = 24 cm²

L trapesium = 1/2 × (14+6) × 3
= 1/2 × 20 × 3
= 10 × 3
= 30cm²

Luas seluruhnya = 12 + 24 + 30 = 66 cm²

L trapesium
= (ss1 + ss2) × t ÷ 2
= (6 cm + 14 cm) × 3 cm ÷ 2
= 20 cm × 3 cm ÷ 2
= 30 cm²

L persegi
= p × l
= 6 cm × 4 cm
= 24 cm²

L segitiga
= a × t ÷ 2
= 6 cm × (11 - 7) ÷ 2
= 6 cm × 4 cm ÷ 2
= 12 cm²

Luas Bangun= 30 cm² + 24 cm² + 12 cm²
Luas Bangun= 66 cm²

opsi A

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