Answer:
a = 1/2 (b) (h)
Step-by-step explanation:
Use Pythagorean theorem for sub triangle on the left: 8^2 + h^2 = 22^2
Use Pythagorean again for sub triangle on the right: x^2 + h^2= 31^2
Find your base: 8+x=b
Find entire area: a = 1/2 (b) (h)
Thing is, you didn't give us the choices!
Answer:
295.68
Step-by-step explanation:
The answer is 246 units²
<span>Surface area= 2(lw + lh + wh)</span>