alleryA triangular plot has sides 5 m, 12 m and 13 m. What is its area?
A32.5 m²
B65 m²
C30 m²
D60 m²
Answer & Solution
Correct answer: C. 30 m²
The semi-perimeter is 15, so the area is √(15 × 10 × 3 × 2) = √900 = 30 m².
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