Question

Write a simplified expression to represent the perimeter of the equilateral triangle: 1.5x + 5 O A. 4.5x + 5 0 B. 6x + 20 O C. 4.5x + 15 O D. 3x + 10

Answer 1

For an equilateral triangle , all the sides are equal. Therefore, the perimeter of the equilateral triangle above is the sum of all it sides.

The sum is calculated below

`\begin{gathered} \text{perimeter = 1.5x+5+1.5x+5}+\text{1.5x+5} \\ \text{perimeter}=4.5x+15 \end{gathered}`

The answer is C.