alleryThe semi-perimeter of a triangle is:
AHalf perimeter
BTwice perimet
CThe longest si
DThe shortest s
Answer & Solution
Correct answer: A. Half perimeter
1. Heron's formula begins with a single number s.
2. It is worked out from the three sides.
3. It is half of the perimeter of the triangle.
4. So the answer is half the perimeter.
_Source: syllabus Mathematics, Ch 6 'Measuring Space: Perimeter and Area'_
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