Geometry and TrigonometryEasy–MediumDepth reached by a diagonal pipe
Geometry and Trigonometry practice question
A straight pipe 15 metres long runs from ground level down into a trench, reaching a point 9 metres horizontally from where it enters the ground. How many metres below ground level is the far end of the pipe?
Answer: 12
√(15² − 9²) = √144 = 12.
Common wrong answers
- If you answered 6
- 6 subtracts 9 from 15.
- If you answered 24
- 24 adds 15 and 9.
- If you answered 17.5
- 17.5 adds the squares.
More Geometry and Trigonometry questions
- Easy–Medium
A circle has a radius of 6. What is its area? (Use A = πr².) - Easy–Medium
A right triangle has legs of length 6 and 8. What is the length of the hypotenuse? - Easy–Medium
A circle has a radius of 5. What is its circumference? (Use C = 2πr.) - Easy–Medium
What is the midpoint of the segment joining the points (2, 3) and (8, 11)? - Easy–Medium
What is the measure, in degrees, of angle B? - Easy–Medium
What is the area, in square centimeters, of the trapezoid?
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