Geometry and TrigonometryEasy–MediumDistance rolled by a wheel
Geometry and Trigonometry practice question
A cart wheel has a radius of 1.5 metres. How many metres does the cart travel while the wheel makes 10 complete turns? (Use π ≈ 3.14.)
Answer: 94.2
One turn covers the circumference, 2 × 3.14 × 1.5 = 9.42 m. Ten turns: 94.2 m.
Common wrong answers
- If you answered 15
- 15 multiplies the radius by 10, ignoring π.
- If you answered 47.1
- 47.1 uses π × r as the circumference, forgetting the 2.
- If you answered 188.4
- 188.4 uses the diameter as the radius.
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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