Question

What is the perimeter of the figure below?
r
X
r-2

Answer 1

Perimeter = 5x - 2

Explanation:

Perimeter of the figure = sum of all its side lengths

Thus:

Perimeter = (x - 4) + (x + 3) + (x - 2) + x + (x + 1)

Perimeter = x - 4 + x + 3 + x - 2 + x + x + 1

Collect like terms

Perimeter = x + x + x + x + x - 4 + 3 - 2 + 1

Perimeter = 5x - 2