Question

A triangle has side lengths of (8f + g) centimeters, (4f - 5h) centimeters, and (9h + 7g)

centimeters. Which expression represents the perimeter, in centimeters, of the triangle?
Answer
O 2h+10g + 12f
O 8g + 12f+4h
O-fh+9fg+ 16gh
O21fh + 3gh
Submit Answer

Answer 1

8g + 12f+4h

Explanation:

To find the perimeter of a triangle, add up all the sides,

P = (8f + g) + (4f - 5h) + (9h + 7g)

Group like terms.

P = 8f + 4f -g+7g -5h +9h

Combine like terms.

P = 12f + 8g + 4h

Rearranging.

8g + 12f + 4h