Question

A triangle has a perimeter of 38cm.
A square has a perimeter of 48cm.
Two sides of the shape are put together to make a pentagon.
What is the perimeter of the pentagon.

Answer 1

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Ans... perimeter of Pentagon is 62 CM

perimeter of triangle is equal to 38 CM

perimeter of square is equal to 48 CM

therefore perimeter of one side of square is 48 divided by 4 is equal to 12 CM

perimeter of Pentagon is 62 CM

Answer 2

Concept:

Perimeter of a square will be:

P = 4 × side.

Given:

Perimeter of triangle = 38 cm.

Perimeter of square = 48 cm.

Find:

We need to find out the perimeter of pentagon.

Step-by-step explanation:

Perimeter of square = 48 cm

4 × side = 48 cm

side = 48 / 4 cm

side = 12 cm.

The side of the triangle that will be joint to form a pentagon will be the side that is 12 cm long.

So, the perimeter of pentagon will become:

P = 48 cm + 38 cm - 12 cm - 12 cm

P = 86 cm - 24 cm

P = 62 cm.

Therefore, the perimeter of the pentagon will be 62 cm.

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