Question

the two adjacent sides of a rectangle are 4a- b and 7b- 2a find the perimeter​

Answer 1

Step-by-step explanation:

The two adjacent sides of a rectangle are: length and breadth

where, length is 'L' and breadth is 'b'.....

given: L= 4a-b and b= 7b-2a

perimeter of a rectangle formula: 2(L+b)

so, by putting L and b values in above formula...

= 2(4a-b+(7b-2a))

= 2(2a+6b)

= 4a+12b

so, perimeter= 4a+12b

hope it helps you friend!