# What is the perimeter of the rectangle with length #5a+7b# and width #3a+5b#?

##### 1 Answer

Jan 4, 2017

Perimeter of a rectangle is

#### Explanation:

Length of the rectangle

Width of the rectangle

Perimeter of a rectangle is

#=2[(5a+7b)+(3a+5b)]#

#=2[5a+7b+3a+5b]#

#=2[8a+12b]#

#=16a+24b#