# Find the area of an equilateral triangle having each side 4 cm. - Mathematics

Short Note

Find the area of an equilateral triangle having each side 4 cm.

#### Solution

Area of an equilateral triangle having each side a cm is given by

A=sqrt(3)/4a^2

Area of the given equilateral triangle having each equal side equal to 4 cm is given by

a = 4 cm

A= sqrt(3)/4 (4)^2

A=sqrt(3)/4 xx 16

A = 4 sqrt(3)  cm^2

Concept: Application of Heron’s Formula in Finding Areas of Quadrilaterals
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#### APPEARS IN

RD Sharma Mathematics for Class 9
Chapter 17 Heron’s Formula
Exercise 17.3 | Q 4 | Page 24

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