Geometry and TrigonometryEasyDiagonal of a rectangular field
Geometry and Trigonometry practice question
A rectangular field is 30 metres wide and 40 metres long. How far is it, in metres, from one corner of the field to the opposite corner along the diagonal?
Answer: 50
The diagonal is the hypotenuse of a right triangle with legs 30 and 40: √(900 + 1600) = 50.
Common wrong answers
- If you answered 70
- 70 is 30 + 40, walking along two sides.
- If you answered 140
- 140 is the perimeter.
- If you answered 1200
- 1,200 is the area.
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