Question

The length of a rectangle is 5cm more than its width. If its perimeter is 58cm,how do you calculate its dimensions and its area?

Answer 1

width: x
length: x+5
perimeter: 2( x+ x + 5) = 58
find width and length then its area

Answer 2

nphuongsun93 where did you get the 2 from in the calculation of the perimeter?

Answer 3

the perimeter equation is 2 * (width + length)
because there are 2 widths and lengths

Answer 4

L = W + 5

2L + 2W = 58

L + W = 29

(W + 5) + W = 29

2W = 24

Find W and then L from here...

Answer 5

ok lets see if im on the right track so far

Answer 6

i got 12 as the width and 17 as the length

Answer 7

so 12+12+17+17 =58

Answer 8

yep sounds good

Answer 9

Yes, you have done it correctly...

Answer 10

Ok A= l*w
A= 17 *12
so: A = 204

Answer 11

You have become Star now...

Answer 12

yay :) thank you!