Question

Perimeter of a rectangle is 15cm and its width is 3.5cm what is the lenght of the rectangle

Answer 1

$\boxed {\boxed{\text {Perimeter = 2(Length + Width)}}}$

Given that the perimeter = 15cm and its width is 3.5cm, find the length:

15 = 2(Length + 3.5)

Divide by 2 on both sides:
Length + 3.5 = 7.5

Take away 3.5 from both sides:
Length = 7.5 - 3.5

Evaluate the Right Hand Side:
Length = 4 cm

$\boxed {\boxed{Answer: Length = 4 cm}}$