alleryUsing Heron's formula, the area of the 3, 4, 5 triangle is:
ATwo
BFour
CSix
DTen
Answer & Solution
Correct answer: C. Six
1. The semi-perimeter is 6.
2. Heron's formula gives the root of 6 times 3 times 2 times 1.
3. That root is 6 square units.
4. So the answer is six.
_Source: syllabus Mathematics, Ch 6 'Measuring Space: Perimeter and Area'_
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