Question

The width of a rectangle measures (9v-3) centimeters, and its length measures (10v+10) centimeters. What is the perimeter of the rectangle in centimeters?

Answer 1

P = 38v + 14

Explanation:

the perimeter (P) of a rectangle is calculated as

P = 2( length + width)

here length = 10v + 10 and width = 9v - 3

substitute these values into the formula for P

P = 2 (10v + 10 + 9v - 3) ← collect like terms inside parenthesis

= 2(19v + 7) ← distribute parenthesis by 2

= 38v + 14 centimetres