90 cm²
L = 1/2 × AC × BD
= 1/2 × 18 × 10
= 180/2
= 90 cm²
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90 cm²
Penjelasan:
L = 1/2 × AC × BD
= 1/2 × 18 × 10
= 180/2
= 90 cm²
semangat terus belajarnya ya!