Answer:
1,120 yd²
Step-by-step explanation:
Surface area of the triangular prism = (bh) + (s1 + s2 + s3)*L
Where,
b = 15 yd
h = 8 yd
s1 = 17 yd
s2 = 15 yd
s3 = 8 yd
L = 25 yd
Substitute
Surface area = (15*8) + (17 + 15 + 8)*25 = 120 + 40*25 = 120 + 1,000
Surface area = 1,120 yd²
