Question

what is the perimeter of the triangle

Answer 1

If the triangle name ABC
Then, Perimeter of triangle = AB + BC + CA


perimeter of triangle is the sum of all 3 side of triangle.

Answer 2

$\textbf{Perimeter of the triangle is the sum of all sides!}$

$\huge{\underline{formula :-}}$

Perimeter of triangle = $\bf{a + b + c}$

a = side 1 ,
b = side 2 ,
c = side 3.

Perimeter is the Boundary.

$\boxed{so,\: for \:example}$ :-

$\bf{\underline{Ques}}$ : Find the perimeter of ∆ABC whose sides are 3cm , 4cm and 5cm.

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

since, side 1 (a) = 3cm

side 2 (b) = 4cm

side 3 (c) = 5cm

hence,

Perimeter of triangle

= sum of all sides

= a + b + c

= 3 + 4 + 5

= 12 cm [ANSWER]

$\textbf{hope you understood!}$