luas bangun datar diatas A.318cm² B.414cm² C.540cm² D.636cm² nomor 14

Bangun 1 = Luas = 1/2 a x t
= 1/2 16 x 12 = 8 x 12 = 96cm²

bangun 2 = Luas = 1/2 a + b x t
= 1/2 x 21 + 16 x 12
= 1/2 x 37 x 12 = 222cm²
222 + 96 =318²
A. 318
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