| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.14 |
| Score | 0% | 63% |
The dimensions of this cylinder are height (h) = 6 and radius (r) = 6. What is the volume?
| 175π | |
| 384π | |
| 5π | |
| 216π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(62 x 6)
v = 216π
What is 5a - 7a?
| -2 | |
| 35a | |
| -2a | |
| 12 |
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.
5a - 7a = -2a
If a = c = 3, b = d = 1, and the blue angle = 77°, what is the area of this parallelogram?
| 7 | |
| 49 | |
| 6 | |
| 3 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 3 x 1
a = 3
Which of the following statements about a triangle is not true?
sum of interior angles = 180° |
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area = ½bh |
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exterior angle = sum of two adjacent interior angles |
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perimeter = sum of side lengths |
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.
A(n) __________ is to a parallelogram as a square is to a rectangle.
quadrilateral |
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trapezoid |
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rhombus |
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triangle |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.