3 years ago

The perimeter of the square below is 28.4 cm

Mathematics

1 answer:

Tomtit [17]3 years ago

6 0

(3.6x - 1.9)4 = 28.4

3.6x - 1.9 = 7.1

3.6x = 7.1 + 1.9

3.6x = 9

x = 9 / 3.6

x = 2.5 (value of x)

3.6(2.5) - 1.9 = 7.1 (side length)

you want to multiply it by 4 because right now its only showing one side. perimeter is all 4 sides combined

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