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= 1/2 x 10cm x 14cm
= 10cm x 7cm
= 70 cm²
Bangun 2 = L = p x l
= 16cm x 14cm
= 224 cm²
Bangun 3 = L = p x l
= 10cm x 7cm
= 70cm²
Luas seluruhnya= Bangun1+bangun2+bangun3
= 70 cm² + 224 cm² + 70 cm²
= 364 cm²
b) Bangun 1 = L = 1/2 x a x t
= 1/2 x 13 cm x 10 cm
= 13 cm x 5 cm
= 65 cm²
Bangun 2 = L = 1/2 x a x t
= 1/2 x 13 cm x 10 cm
= 13 cm x 5 cm
= 65 cm²
Bangun 3 = L = p x l
= 34 cm x 16 cm
= 544 cm²
Luas seluruhnya= Bangun1+Bangun2+Bangun3
= 65 cm² + 65 cm² + 544 cm²
= 674 cm²
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