Penjelasan dengan langkah-langkah:
(a) L = 1/2 x 12 x 5
= 30 cm²
(b) L = 1/2 x 16 x 6
= 48 cm²
(c) L = 1/2 x 20 x 12
= 120 cm²
(d) L = 1/2 x 12 x 6
= 36 cm²
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Penjelasan dengan langkah-langkah:
(a) L = 1/2 x 12 x 5
= 30 cm²
(b) L = 1/2 x 16 x 6
= 48 cm²
(c) L = 1/2 x 20 x 12
= 120 cm²
(d) L = 1/2 x 12 x 6
= 36 cm²