still follows the property of 
for any non-zero x.
Therefore, the answer is 1.
Answer:
Step-by-step explanation:
A triangular prism is a prism that has two triangular faces and three rectangular sides.
The area of the rectangular sides is A = lbh
A = area, l = length, and h = height.
The area of the triangular faces is A = 1/2bh
A = area, b = base, and h = height.
4+4x+4x=20
4+8x=20
4=12x
3=x
