Question

What is the perimeter of an equilateral triangular lamina of side length 12 cm​

Answer 1

Answer: Perimeter = 36 cm

Concept:

Here, we need to know how to find the perimeter of an equilateral triangle.

An equilateral triangle is a triangle in which all three sides have the same length.

Perimeter (equilateral triangle) = 3s

s = side length

Solve:

Given information

Side length = 12 cm

Given expression

Perimeter = 3s

Substitute values into the expression

Perimeter = 3 (12)

Simplify by multiplication

Perimeter=
`\boxed{36cm}`

Hope this helps!! :)

Please let me know if you have any questions

Answer 2

It is 36 cm

Explanation:

In equilateral triangle, all sides are equal.

`{ \sf{perimeter = side + side + side}}`

but side = 12 cm

`{ \sf{p = (12 + 12 + 12)}} \\ { \sf{p = 36 \: cm}}`