The area of an equilateral triangle is 173.2 cm2 . Its side will be __________.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 20 cm.
Given that
The area of an equilateral triangle is 173.2 cm2
Formula used
Area of an equilateral triangle = √3/4 × (side)2
⇒ √3/4 × (side)2 = 173.2
⇒ side = √400 = 20 cm