Prisms
Example 2

Find the volume of the regular pentagonal prism below.

 Step 1.  Find the area of one of the congruent bases.

A = 0.5 · a · P

A = 0.5 · 8 · 60

A = 240 ft2

Step 2.  Multiply the area of the base by the height between the two congruent bases.

V = B · h

V = 240 ft2 ·  22 ft

V = 5280 ft3

 

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