| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.95 |
| Score | 0% | 59% |
The dimensions of this cylinder are height (h) = 1 and radius (r) = 4. What is the volume?
| 16π | |
| 81π | |
| 225π | |
| 294π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(42 x 1)
v = 16π
The formula for volume of a cube in terms of height (h), length (l), and width (w) is which of the following?
lw x wh + lh |
|
h2 x l2 x w2 |
|
2lw x 2wh + 2lh |
|
h x l x w |
A cube is a rectangular solid box with a height (h), length (l), and width (w). The volume is h x l x w and the surface area is 2lw x 2wh + 2lh.
If angle a = 59° and angle b = 31° what is the length of angle c?
| 90° | |
| 104° | |
| 51° | |
| 81° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 59° - 31° = 90°
Solve for b:
3b - 3 > \( \frac{b}{5} \)
| b > 1\(\frac{8}{19}\) | |
| b > -\(\frac{24}{25}\) | |
| b > 1\(\frac{3}{7}\) | |
| b > 1\(\frac{1}{14}\) |
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 > sign and the answer on the other.
3b - 3 > \( \frac{b}{5} \)
5 x (3b - 3) > b
(5 x 3b) + (5 x -3) > b
15b - 15 > b
15b - 15 - b > 0
15b - b > 15
14b > 15
b > \( \frac{15}{14} \)
b > 1\(\frac{1}{14}\)
Which types of triangles will always have at least two sides of equal length?
equilateral, isosceles and right |
|
isosceles and right |
|
equilateral and right |
|
equilateral and isosceles |
An isosceles triangle has two sides of equal length. An equilateral triangle has three sides of equal length. In a right triangle, two sides meet at a right angle.