Question

The length of one side of a rectangle is a cm.
Another side is 3(a-2) cm long.
The perimeter is 44 cm.
a) Write an equation to show this.
b) Find the lengths of the sides of the rectangle.​

Answer 1

Explanation:

For a rectangle, its perimeter is the sum of all for sides. We can write

54=20+20+S+S

Simplify

54=40+2S

Solve for S

14=2S

S=7

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