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= 1/2 x 24 cm x 21 cm
= 252 cm²
L = 1/2 x d1 x d2
= 1/2 x 34,5 cm x 17,5 cm
= 301,875 cm²
L = 1/2 x d1 x d2
= 1/2 x 11 cm x 25 cm
= 137,5 cm²
a. 24 × 21 × 1/2 = 252 cm2
b. 34,5 × 17,5 × 1/2 = 301,875 cm2
c. 11 × 25 × 1/2 = 137,5 cm2
jadikan jawaban terbaik ya!!