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2 years ago

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

Mathematics

2 answers:

Marina86 [1]2 years ago

7 0

Answer:

It is 36 cm

Step-by-step explanation:

In equilateral triangle, all sides are equal.

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

but side = 12 cm

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

BartSMP [9]2 years ago

3 0

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

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

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