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Zigmanuir [339]
3 years ago
12

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

Mathematics
2 answers:
Marina86 [1]3 years ago
7 0

Answer:

<u>It</u><u> </u><u>is</u><u> </u><u>3</u><u>6</u><u> </u><u>cm</u>

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]3 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:

<u>Given information</u>

Side length = 12 cm

<u>Given expression</u>

Perimeter = 3s

<u>Substitute values into the expression</u>

Perimeter = 3 (12)

<u>Simplify by multiplication</u>

Perimeter= \boxed{36cm}

Hope this helps!! :)

Please let me know if you have any questions

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