Geometry and TrigonometryEasy–MediumFloor area minus a hearth
Geometry and Trigonometry practice question
A room's floor is a rectangle 12 feet by 9 feet, and a rectangular stone hearth 2 feet by 3 feet is set into it. How many square feet of the floor are not hearth?
Answer: 102
108 − 6 = 102.
Common wrong answers
- If you answered 6
- 6 is the hearth.
- If you answered 108
- 108 is the whole floor.
- If you answered 114
- 114 adds the hearth instead of subtracting.
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- 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
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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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