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The length of the boundary of a polygon is called its perimeter.

The lengths of the sides of the figure above are given in metres. What is y if the perimeter of this figure is 27 m?

The length of the boundary of a polygon is called its perimeter The lengths of the sides of the figure above are given in metres What is y if the perimeter of t class=

Respuesta :

The value of y if the perimeter of the figure is 5y is 15meters.

How to find the perimeter of a polygon?

The perimeter of a polygon is the sum of the length of the whole sides.

Therefore,

perimeter = y + 2y + 30

perimeter = 5y

Hence,

5y = 3y + 30

5y - 3y = 30

2y = 30

divide both sides by 2

2y / 2 = 30 / 2

y = 15

Therefore, the value of y is 15m.

learn more on perimeter here: https://brainly.com/question/21727079

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