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Per NCERT's Example 5, applying Heron's formula to a triangle with sides 3, 4, 5 gives what area?
A15 square units
B√50 square units
C6 square units
D12 square units
Answer & Solution
Correct answer: C. 6 square units
s = (3+4+5)/2 = 6; area = √(6×3×2×1) = √36 = 6 sq units. The other options misapply.
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