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Question
The area of an equilateral triangle is `4sqrt(3)` cm2. Its perimeter is ______.
Options
9 cm
12 cm
`12sqrt(3)` cm
`6sqrt(3)` cm
MCQ
Fill in the Blanks
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Solution
The area of an equilateral triangle is `4sqrt(3)` cm2. Its perimeter is 12 cm.
Explanation:
`sqrt(3)/4 xx a^2 = 4sqrt(3) cm^2`
⇒ a2 = 16 cm
⇒ a = 4 cm
∴ Perimeter = 3a
= (3 × 4) cm
= 12 cm
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