Geometry & TrigonometryMedium
Area and volume
Calculate area and perimeter of 2D shapes, and volume and surface area of 3D solids.
Sample SAT Problem
A cylinder has radius 3 and height 5. What is its volume?
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Step-by-Step Solution
V = πr²h = π(3²)(5) = 45π ≈ 141.4.
Key Tips from Pamela
- All major formulas are provided in the SAT reference sheet — use them.
- Be careful with units: area uses squared units, volume uses cubed units.
- For composite shapes, break them into smaller shapes and add or subtract areas.
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