Question

Here is a rectangle labelled abcd the length of the rectangle is increased by10% and width 5% how much percent has the perimeter increases by

Answer 1

Answer:

8%

Step-by-step explanation:

new length = 110% x 30 = 33cm

new width = 105% x 20 = 21cm

new perimeter = 2(33 + 21) = 108cm

old perimeter = 2(30 + 20) = 100cm

percentage increase = 8/100 x 100% = 8%

Topic: Percentage

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