alleryAn equilateral triangle of side a has perimeter:
A2a
B6a
C3a
D4a
Answer & Solution
Correct answer: C. 3a
1. An equilateral triangle has three equal sides.
2. Each side is a units long.
3. So the perimeter is 3a units.
4. The answer is 3a.
_Source: syllabus Mathematics, Ch 6 'Measuring Space: Perimeter and Area'_
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