Answer:
The first choice, 8.64 sq. ft.
Step-by-step explanation:
Formula for area of triangle:
(Length x Height) / 2
4.8 * 3.6 = 17.28
17.28 / 2 = 8.64
A = 8.64 sq. ft. so, the first choice
8.42ft square
Base × height/2
base=4.8ft
height =3.6ft
4.8 × 3.6= 17.28
17.28/2=8.64ft
