Geometry and TrigonometryEasyDistance around a field
Geometry and Trigonometry practice question
A rectangular field is 120 metres long and 80 metres wide. A runner runs once around the edge of the field. How far does she run, in metres?
Answer: 400
The perimeter is 2(120 + 80) = 400.
Common wrong answers
- If you answered 200
- 200 adds the two dimensions once.
- If you answered 320
- 320 doubles the length and adds the width once.
- If you answered 9600
- 9600 is the area.
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