Question

Median of an equilateral triangle is 15√3 cm. What is the side of this triangle?

• A. 24 cm
• B. 18 cm
• C. 30 cm
• D. 36 cm

Answer 1

Answer:

C. 30 cm

Solution: Given: Median of an equilateral triangle is 15√3 cm. Concept Used: Length of median of the equilateral triangle = (√3/2) × side Calculation: Let the side of the equilateral triangle be a cm. Length of median of the triangle = (√3/2) × a ⇒ (√3/2) × a = 15√3 ⇒ a = 30 cm Side = 30 cm ∴ Option 3 is the correct answer.