| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.17 |
| Score | 0% | 63% |
Order the following types of angle from least number of degrees to most number of degrees.
right, acute, obtuse |
|
acute, obtuse, right |
|
acute, right, obtuse |
|
right, obtuse, acute |
An acute angle measures less than 90°, a right angle measures 90°, and an obtuse angle measures more than 90°.
The dimensions of this cylinder are height (h) = 8 and radius (r) = 2. What is the volume?
| 32π | |
| 112π | |
| 75π | |
| 384π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(22 x 8)
v = 32π
The dimensions of this cube are height (h) = 2, length (l) = 3, and width (w) = 1. What is the surface area?
| 62 | |
| 80 | |
| 48 | |
| 22 |
The surface area of a cube is (2 x length x width) + (2 x width x height) + (2 x length x height):
sa = 2lw + 2wh + 2lh
sa = (2 x 3 x 1) + (2 x 1 x 2) + (2 x 3 x 2)
sa = (6) + (4) + (12)
sa = 22
A trapezoid is a quadrilateral with one set of __________ sides.
equal angle |
|
equal length |
|
right angle |
|
parallel |
A trapezoid is a quadrilateral with one set of parallel sides.
Solve for b:
7b + 5 = 4 - 6b
| -\(\frac{3}{5}\) | |
| -\(\frac{1}{13}\) | |
| \(\frac{7}{9}\) | |
| \(\frac{1}{3}\) |
To solve this equation, repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the equal sign and the answer on the other.
7b + 5 = 4 - 6b
7b = 4 - 6b - 5
7b + 6b = 4 - 5
13b = -1
b = \( \frac{-1}{13} \)
b = -\(\frac{1}{13}\)