a cross section of the prism shown is parallel to a base. The area of the cross section is 78.5 square feet. The ratio of AB to BC is 5:4. The length of AB is 10 feet. Find the volume of the prism.
Given: Area of cross section= 78.5 ft² Ratio of AB to BC= 5 : 4 AB=10 ft To find BC, we get 5/4=10/BC 5BC=40 BC=8 ft Now formula for volume of prism: V=Area of base x height Put values V=78.5 x (10+8) V=78.5 x 18 V=1413 ft²
