| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.41 |
| Score | 0% | 68% |
The formula for volume of a cube in terms of height (h), length (l), and width (w) is which of the following?
h x l x w |
|
lw x wh + lh |
|
h2 x l2 x w2 |
|
2lw x 2wh + 2lh |
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 = 41° and angle b = 49° what is the length of angle c?
| 98° | |
| 72° | |
| 102° | |
| 90° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 41° - 49° = 90°
A right angle measures:
45° |
|
360° |
|
180° |
|
90° |
A right angle measures 90 degrees and is the intersection of two perpendicular lines. In diagrams, a right angle is indicated by a small box completing a square with the perpendicular lines.
The dimensions of this cylinder are height (h) = 8 and radius (r) = 4. What is the volume?
| 2π | |
| 243π | |
| 200π | |
| 128π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(42 x 8)
v = 128π
The dimensions of this trapezoid are a = 4, b = 5, c = 5, d = 6, and h = 2. What is the area?
| 28 | |
| 27\(\frac{1}{2}\) | |
| 11 | |
| 10 |
The area of a trapezoid is one-half the sum of the lengths of the parallel sides multiplied by the height:
a = ½(b + d)(h)
a = ½(5 + 6)(2)
a = ½(11)(2)
a = ½(22) = \( \frac{22}{2} \)
a = 11