Question

Find the side of an equilateral triangle if its perimeter is 5.4cm.
pls fast​

Answer 1

$\huge\pink{ Solution}$

perimeter of square=perimeter of triangle

4a = 3b

4a =21.6cm

a =

21.6\div 421.6÷4

side of square=5.4cm

pls mark as brainest

Answer 2

$\bf \red {Hola}$

$\mathfrak \green {Please \: Mark \: it \: BRAINLIEST}$

The side of an equilateral triangle is

$\fbox \purple { 1.8 cm }$

Perimeter of a traingle = side + side + side

We know that...

the sides of an equilateral triangle are equal.

Let the each side of equilateral triangle be a

Applying the formula:-

$Perimeter \: of \: a \: traingle = side + side + side \\ 5.4 = a \: + \: a \: + a \: \\ 5.4 = 3a \\ \frac{5.4}{3 } = a \\ 1.8 \: cm = a$

Hence the side of an equilateral triangle is 1.8 cm.