| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.65 |
| Score | 0% | 53% |
The dimensions of this trapezoid are a = 5, b = 9, c = 8, d = 3, and h = 4. What is the area?
| 16 | |
| 24 | |
| 6 | |
| 34 |
The area of a trapezoid is one-half the sum of the lengths of the parallel sides multiplied by the height:
a = ½(b + d)(h)
a = ½(9 + 3)(4)
a = ½(12)(4)
a = ½(48) = \( \frac{48}{2} \)
a = 24
What is the area of a circle with a radius of 2?
| 4π | |
| 2π | |
| 25π | |
| 9π |
The formula for area is πr2:
a = πr2
a = π(22)
a = 4π
If the length of AB equals the length of BD, point B __________ this line segment.
bisects |
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trisects |
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midpoints |
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intersects |
A line segment is a portion of a line with a measurable length. The midpoint of a line segment is the point exactly halfway between the endpoints. The midpoint bisects (cuts in half) the line segment.
A(n) __________ is to a parallelogram as a square is to a rectangle.
rhombus |
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quadrilateral |
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triangle |
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trapezoid |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.
Which of the following statements about a parallelogram is not true?
a parallelogram is a quadrilateral |
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the perimeter of a parallelogram is the sum of the lengths of all sides |
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the area of a parallelogram is base x height |
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opposite sides and adjacent angles are equal |
A parallelogram is a quadrilateral with two sets of parallel sides. Opposite sides (a = c, b = d) and angles (red = red, blue = blue) are equal. The area of a parallelogram is base x height and the perimeter is the sum of the lengths of all sides (a + b + c + d).