| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.43 |
| Score | 0% | 69% |
Which of the following statements about a parallelogram is not true?
a parallelogram is a quadrilateral |
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the area of a parallelogram is base x height |
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opposite sides and adjacent angles are equal |
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the perimeter of a parallelogram is the sum of the lengths of all sides |
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).
What is 2a8 - 5a8?
| 7 | |
| -3 | |
| a816 | |
| -3a8 |
To combine like terms, add or subtract the coefficients (the numbers that come before the variables) of terms that have the same variable raised to the same exponent.
2a8 - 5a8 = -3a8
If a = 9, b = 7, c = 8, and d = 3, what is the perimeter of this quadrilateral?
| 27 | |
| 31 | |
| 29 | |
| 11 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 9 + 7 + 8 + 3
p = 27
The dimensions of this cylinder are height (h) = 2 and radius (r) = 6. What is the volume?
| 72π | |
| 80π | |
| 96π | |
| 200π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(62 x 2)
v = 72π
A trapezoid is a quadrilateral with one set of __________ sides.
parallel |
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equal angle |
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right angle |
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equal length |
A trapezoid is a quadrilateral with one set of parallel sides.