The height of a prism with equilateral triangular base is 25 cm. If the perimeter of the base of the prism is 18 cm, find the volume

450

Step-by-step explanation:

The volume of prism is Base times the height.

The Base you count from surface area. The formula is a*b/2. The a is 18/3, because you have the equilateral triangle. So you count 6*6/2 and get 18 square cm.  

After that you just multiply 18 and 25 and get 450

I hope this is right

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

∈3,600

step-by-step explanation: