1. When finding unknown values, plug what you know into the formula and solve for what’s missing! Find the height of the triangular prism.
V = Ah
A = Area of the base
h = height of the solid
Atriangle = bh 1 2 1 2
Volume = ( bh)h h 1 2
189 = (7)h
7 m
6 m
The volume of the prism is 189 m3.

2. The height of the prism is 9 meters!!
V = Ah
A = Area of the base
h = height of the solid
Atriangle = bh 1 2 1 2
189 = (7)h
Plug in what you know. 1 2
189 = (42)h
6(7) = 42 h 1 2
189 = 21h
(42) = 21
7 m
9 = h
Divide both sides by 21.
6 m
The volume of the prism is 189 m3.
The height of the prism is 9 meters!!

3. V = Ah
A = Area of the base
h = height of the solid
The volume of the prism is 264 in3. The height is 22 in. Find the area of the base.
Atriangle = bh 1 2
Don’t be mislead by how the solid sits. A triangle needs to be the base.
If necessary, ROTATE IT!

4. The area of the triangular base is 12 inches!!
V = Ah
A = Area of the base
h = height of the solid
The volume of the prism is 264 in3. The height is 22 in. Find the area of the base.
Atriangle = bh 1 2
264 = A22
Plug in what you know. 22
12 = A
Divide both sides by 22.
The area of the triangular base is 12 inches!!