Geometry and TrigonometryHardArea of a trapezoid
Geometry and Trigonometry practice question
A trapezoid has parallel sides of length 8 and 12 and a height of 5. What is its area?
Answer: 50
Area = (1/2)(8 + 12)(5) = 50.
Common wrong answers
- If you answered 40
- 40 uses only the shorter side, 8 × 5.
- If you answered 60
- 60 uses only the longer side, 12 × 5.
- If you answered 100
- 100 forgets the half.
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