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20 Point Maths question! Will give BRAINLIEST!



A rectangle has a length of 4 centimeters and a width of 7 centimeters.

What is the effect on the perimeter when the dimensions are multiplied by 5?

The perimeter is increased by a factor of 5.
The perimeter is increased by a factor of 20.
The perimeter is increased by a factor of 25.
The perimeter is increased by a factor of 100.

Respuesta :

musiclover10045
perimeter of original rectangle:  4 +4 +7 +7 = 22 cm

multiply dimensions by 5: 4*5 = 20, 7 *5 = 35

perimeter of new rectangle = 20 + 20 + 35 +35 = 110 cm

factor: 110 / 22 = 5

the perimeter is increased by a factor of 5