Math Drills
Surface Area of Solids Review
4Finding the Surface Area
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What this worksheet covers
Picturing the net, children add the two bases and all the side faces to get the outside area of a solid. The sequence runs through rectangular prisms and cubes, triangular prisms, trapezoidal prisms, pentagonal prisms, cylinders and half cylinders, and reaches composite solids such as a rectangular prism minus a cylinder, a concentric pipe, and a cylinder with a C-shaped slit.
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Finding the side face of a cylinder by multiplying the diameter, rather than the circumference, by the height stands out. Many answers add only one base and fall short by exactly one base area. With a solid that has a hole through it, children subtract the faces that disappeared but forget to add the inner tube surface the hole creates.
The focus switches from how much fills a solid to how much surface wraps around it. The same solid shapes handled in Volume of Prisms and Cylinders are looked at again here with a different formula. Proportion and Inverse Proportion, which follows, moves to an entirely different question: how two quantities change together.
- Surface Area of Prisms and Cylinders · Rectangular Prism and Cube1 question
- Surface Area of Prisms and Cylinders · Cylinder1 question
- Surface Area of Composite Solids · Rectangular Prism − Cylinder1 question
- Surface Area of Composite Solids · Prism on Top of a Cylinder1 question
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More worksheets in this unit
Surface Area of Prisms and CylindersSurface Area of Prisms and Cylinders Finding the Surface Area (Prisms and Cylinders)
Surface Area of Composite SolidsSurface Area of Composite Solids Finding the Surface Area (Prism − Cylinder and More)
Surface Area of Composite SolidsSurface Area of Composite Solids Finding the Surface Area (2-Tier Cylinders and More)
