Question

the perimeter of an equilateral triangle is 78 cm . Determine the length of each side.​

Answer 1

Perimeter of the equilateral triangle is = 78cm

let,

Each side of the equilateral triangle is = a cm

ATQ,

3a = 78cm {Perimeter of equilateral triangle=3a }

=>a = 78/3=26cm

Answer 2

$\huge\rm\pink{an{\mathfrak{S}}wer:}$

$\bf{{\underline{Given}}:}$

Perimeter of the equilateral triangle is 78cm

$\bf{{\underline{To~find}}:}$

Side length of the equilateral triangle

$\bf{{\underline{Solution}}:}$

We know that, all the sides in an equilateral triangle are equal

$\sf\therefore{Let~the~sides~be~~‛x’}$

$\sf{:\implies x+x+x=78cm}$

$\sf{:\implies 3x=78}$

$\sf{:\implies x={\dfrac{78}{3}}}$

$\sf{:\implies {\green{\underline{\boxed{\bf x=26cm}}}}}$

$\bf\therefore{{\underline{Required~answer}}:}$

The side length of the equilateral triangle is

$\sf{\green{\underline{\underline{\bf 26cm}}}}$