I'm gonna go with triangular pyramid and a cylinder
Answer:
perimeter above side length four times
Step-by-step explanation:
we know that
The perimeter of a square is equal to

where
b is the length side of the square
Solve the formula by b
That means----> isolate the variable b
Divide by 4 both sides

we have

substitute

Rewrite the expression 

so
perimeter above side length four times
Answer:
the face area would be 25.0
and total area would be 150.0
Step-by-step explanation:
5.0*5.0=25.0
6*25.0=150
10 seats are nonsplash zone
18-8=10 because there are 18 total seats and 8 splash zone seats just subtract them Hope this helped :)