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

It is 36 cm

Step-by-step explanation:

In equilateral triangle, all sides are equal.

but side = 12 cm

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=

Hope this helps!! :)

Please let me know if you have any questions

1. sometimes

2. never true

3. sometimes

step-by-step explanation:

these are pretty self explanatory if you know what supp right and com angles are