Question

Here is a rectangle abcd. the length of the rectangle is increased by 10%. the width of the rectangle is increased by 5%. find the percentage increase in the perimeter of the rectangle

Answer 1

Answer:

Step-by-step explanation:

You have to find 5% of 20 and then add that onto 20

Then you need to find 10% of 30 and add that onto 30

Then add up all the sides because that is how you find perimeter.

HOPE THIS HELPS!!

Answer 2

The percentage increase in the perimeter of the rectangle is 6.67 %.

Percentage :

• A percentage is a number or ratio that can be expressed as a fraction of 100.

• The length of the rectangle is increased by 10% ,

          10% $= 1/10$

• If initial length of rectangle is 10 then new length of rectangle will be 11 unit.

             5 % $=1/20$

• If initial width of rectangle is 20 then new width of rectangle will be 21 unit.

 Initial perimeter  $=2(20+10)=60$

New perimeter $=2(11+21)=64$

the percentage increase in the perimeter of the rectangle is,

               $=\frac{64-60}{60}*100=\frac{4}{60}*100=6.67$

Learn more about the Perimeter of rectangle here:

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