Tolong dibantu ya kak

Tolong dibantu ya kak

SOAL 1

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L = ½ × (A + B) × T

L = ½ × (8 + 12) × 9

L = ½ × 20 × 9

L = ½ × 180

L = 90 cm²

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L = ½ x (a+b) x t

L = ½ x (8+12) x 9

L = ½ x 20 x 9

L = 10 x 9

L = 90 cm