Question

find the perimeter of a
equilateral triangle of side 3 cm.​

Answer 1

Answer:

$\sf{Perimeter \: of \: equlateral \: trangle = 9}$

Step-by-step explanation:

$\sf{{ \underline{Given}}:side \: 3cm}$

$\sf{{ \underline{To \: find}}}:perimeter \: of \: equilateral \: triangle$

$\sf{\underline{Solution}}:$

${ \boxed{Perimeter \: of \: an \: equlaterall \: triangle = 3a}}$

$\sf{ = 3(3)} \: (given \: side(a) = 3)$

$\sf{ = 9}$

$\bf \blue{\underline{Please \: mark \: it \: as \: brainlist \: answer}}$

Answer 2

Answer:

Hence the perimeter of equilateral triangle is 9 cm.

Step-by-step explanation:

According to the information provided in the question.

It is stated in the preceding question that,

The presented information is side of an equilateral triangle is 3cm.

We need to find the perimeter of equilateral triangle.

The formula of perimeter of the equilateral triangle is as bellow,

$P=3a$

Where a is the side of the  equilateral triangle,

Substitute the value of side that is a = 3 we get,

$P=3\times 3\\P=9cm$

Hence the perimeter of equilateral triangle is 9 cm.