Answer:
Your answer is letter d
Step-by-step explanation:
Answer: 12 inches
Vol = 1/3 x b x h
240 = 1/3 x b x 15
b = 240/5 = 48 in = area of triangle base
Area = 1/2 x b x h
48 = 1/2 x 8 x h
h = 48/4 = 12 inches
Uhm, The answer: y = 3