Step-by-step explanation:

the volume of cylinder is 3.14 r^2×h
Octagon is 309.02cm²
Pentagon is 172.05in²
Answer:
C can i have brainlest pls
Step-by-step explanation:
First, we are going to want to plug in the values we are given. In this case, we will end up with the equation:

From here, we can solve the equation to find
:

- Apply the commutative property to rearrange the terms on the right-side of the equation to make the distributive property more apparent

- Apply the distributive property

- Subtract 8 from both sides of the equation

- Divide both sides of the equation by -2
We have found that c = 1.