Geometry and TrigonometryEasyArea of a triangle
Geometry and Trigonometry practice question
A triangle has a base of 10 and a height of 6. What is its area?
- A. 16
- B. 30Correct
- C. 60
- D. 120
Answer: B. 30
Area = ½ × base × height = ½ × 10 × 6 = 30. Choice C (60) forgets the ½ factor.
Why the other answers are wrong
- A. 16
- 16 is 10 + 6; you added the base and height instead of multiplying them and halving.
- C. 60
- 60 is 10 × 6, but you left off the ½ in Area = ½ × base × height.
- D. 120
- 120 is 2 × 10 × 6 — you doubled the product instead of halving it. The formula is ½ × base × height.
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