Answer:
i guess you know its 40 now. :p
Step-by-step explanation:
Volume of the pentagonal prism =
Area of the pentagon• height of the prism
Answer:
60 square units; 40 units
Step-by-step explanation:
to find the missing side you use the pythagorean theorem
a^2 + b^2 = c^2
8^2 + b^2 = 17^2
64 + b^2 = 289
b^2 = 225
b = 15
area is l*h*1/2
15 * 8 * 1/2 = 60 square units
perimeter is adding them all
15 + 8 + 17 = 40 units
Answer:

Step-by-step explanation:
Combining like terms:


just plug into a calculator