Question

The side of an equilateral triangle is $0.5$ cm. The perimeter of the triangle is

• A. 1
• B. 2
• C. 1.5
• D. None of these

Answer 1

Answer: (C)

1.5

Side of an equilateral triangle$=\frac{1}{2}=0.5$cm

An equilateral triangle has all its $3$ sides equal.

$\therefore$ Perimeter of equilateral triangle$=3\times$ side of equilateral triangle$=3\times 0.5=1.5$cm