| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.30 |
| Score | 0% | 66% |
The dimensions of this cylinder are height (h) = 2 and radius (r) = 7. What is the volume?
| 80π | |
| 144π | |
| 125π | |
| 98π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(72 x 2)
v = 98π
Which of the following statements about a triangle is not true?
perimeter = sum of side lengths |
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area = ½bh |
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sum of interior angles = 180° |
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exterior angle = sum of two adjacent interior angles |
A triangle is a three-sided polygon. It has three interior angles that add up to 180° (a + b + c = 180°). An exterior angle of a triangle is equal to the sum of the two interior angles that are opposite (d = b + c). The perimeter of a triangle is equal to the sum of the lengths of its three sides, the height of a triangle is equal to the length from the base to the opposite vertex (angle) and the area equals one-half triangle base x height: a = ½ base x height.
What is 3a - 6a?
| -3a2 | |
| 18a | |
| -3a | |
| 9 |
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.
3a - 6a = -3a
The dimensions of this cube are height (h) = 5, length (l) = 8, and width (w) = 4. What is the volume?
| 90 | |
| 144 | |
| 8 | |
| 160 |
The volume of a cube is height x length x width:
v = h x l x w
v = 5 x 8 x 4
v = 160
If the length of AB equals the length of BD, point B __________ this line segment.
midpoints |
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intersects |
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bisects |
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trisects |
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.