Prisms: Test

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1. Find the area of a rectangular prism with base 6 inches by 4 inches and height 7 inches? (click for answer)

   188 inch²

   Area = 2(wh + lw + lh), where l = length, w = width, h = height.
   or, Area = 2 (4×7 + 6×4 + 6×7)
   or, Area = 2 (28 + 24 + 42)
   or, Area = 2 (94)
   or, Area = 188 in²

2. Find the volume of a triangular prism with sides 6 inches, 4 inches and height 7 inches? (click for answer)

   84 in³

   Volume of the prism = Area of triangular base x height
   or, V = ½ x 4 x 7
   or, V = 14 x 6
   or V = 84 in³