Hard Math Class 9 Level 3

An equilateral triangle has side 14 cm. What is its area?

एक समबाहु त्रिभुज की भुजा 14 cm है। उसका क्षेत्रफल कितना होगा?

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Correct Answer

A. 49√3 cm² / 49√3 cm²

Explanation

Area of an equilateral triangle is √3/4 × a² so √3/4 × 196 = 49√3 cm².

समबाहु त्रिभुज का क्षेत्रफल √3/4 × a² होता है इसलिए √3/4 × 196 = 49√3 cm²।

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