Find the length of GF.

What is the measure of ac? 5 units 13 units 26 units 39 units

If you answer right ill give brainliest, : )

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.