Advanced MathMediumHypotenuse from a right triangle's area and one leg
Advanced Math practice question
A right triangle has an area of 30 square units, and one of its legs has length 5 units. What is the length of the hypotenuse?
Answer: 13
Area = (1/2)(5)(b) = 30 → b = 12. Hypotenuse = √(25 + 144) = 13.
Common wrong answers
- If you answered 12
- 12 is the other leg.
- If you answered 17
- 17 is 5 + 12.
- If you answered 7.81
- 7.81 is √61, using a leg of 6.
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