Question

Find the width of the rectangle if the perimeter is 39cm and the length is 13cm

Answer 1

Answer:

let b the width of the rectangle .

Step-by-step explanation:

given,

perimeter =39 CM and length =13 CM. then ,

2(l+ b) = 39

l+b = 39/2

13 +b = 39 /2

b=39/2 _ 13

b=39_26/2

b=13/2=6.5

Answer 2

Answer:

6.5 cm

Step-by-step explanation:

P = 2(l + w)

2(13 + w) = 39

26 + 2w = 39

2w = 13

w = 6.5 cm