Question

If one side of an equilateral triangle is 4cm then find its area?

Answer 1

Answer:

Given : side of equilateral triangle is 4 cm

formula for area of triangle is 1/2*b*h

where,

h stand for height

b stand for base

let ABC  a equilateral teiangle

In equilateral triangle all side are equal then AB=BC=CA=4 cm

by using the pythagarous  therom , we'll find the height

let a be side of triangle

we by pythagoraus

h² = b²+p²

h  stand for hypotenuse

b stand for  base

p stand for perpendiculer

then

of equilateral triangle is

p²=h²-b²

area of equliateral triangle is 1/2a*√3/2a

where a = 4 cm

then     aera of triangle = 1/2*4*√3/2*4 = 4√3 cm²________answer

for more watch picture in below

Step-by-step explanation:

Answer 2

Step-by-step explanation:

An equilateral triangle is a triangle in which all three sides are equal.

Area of equilateral triangle = √3/4×4²

= √3/4×16

= 4√3cm²

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