Question : The perimeter of an equilateral triangle is 40 cm more than the length of each of its sides. What is the length of each side of this equilateral triangle?
Option 1: 10 cm
Option 2: 30 cm
Option 3: 15 cm
Option 4: 20 cm
Answer (1)
10th Jan, 2024
Correct Answer: 20 cm
Solution :
Let $x$ be the length of the sides of the equilateral triangle.
The perimeter of the equilateral triangle = $3x$
So, $3x = 40 + x$
⇒ $2x = 40$
⇒ $x=20$
Hence, the correct answer is 20 cm.
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