Are you a deep thinker and why?

0 ⤊

Are you a deep thinker and why?

The perimeter of a rectangle is 128cm. If each side has 3 inches added to it what is the new perimerter?

What is the answer?

2007-03-16 04:35:39 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

3 answers

An inch = 2.54cm.

3" x 4 sides of a rectangle = 12" added to the perimeter.

12*2.54 = 30.48cm.

So, the perimeter has increased by 30.48cm, and is now 158.48cm.

2007-03-16 04:40:13 · answer #1 · answered by darth_logical 4 · 0⤊ 0⤋

P=128cm
convert it to inches is:
128/2.54
= 50.39 inches

New perimeter of the rectangle will be:
= 50.39 + 3(4)
= 62.39 inches or 158.47 cms. ...............ans.

2007-03-16 04:54:18 · answer #2 · answered by edison c d 4 · 0⤊ 0⤋

3"x4=12"=12x2.54cm=30.48
then new perimeter=128+30.48=158.48cm

2007-03-16 04:52:47 · answer #3 · answered by raheleh 2 · 0⤊ 0⤋