Geometry and TrigonometryEasy–MediumArea of a border around a photo
Geometry and Trigonometry practice question
A rectangular photograph 12 centimetres by 8 centimetres is mounted in the centre of a rectangular card, leaving a border 2 centimetres wide on every side. What is the area of the border, in square centimetres?
Answer: 96
The card is 16 by 12, area 192; the photo is 96; the border is 192 − 96 = 96.
Common wrong answers
- If you answered 40
- 40 is the photo's perimeter.
- If you answered 48
- 48 halves the border's area.
- If you answered 192
- 192 is the whole card.
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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