| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.52 |
| Score | 0% | 70% |
The dimensions of this cylinder are height (h) = 4 and radius (r) = 6. What is the surface area?
| 120π | |
| 32π | |
| 306π | |
| 288π |
The surface area of a cylinder is 2πr2 + 2πrh:
sa = 2πr2 + 2πrh
sa = 2π(62) + 2π(6 x 4)
sa = 2π(36) + 2π(24)
sa = (2 x 36)π + (2 x 24)π
sa = 72π + 48π
sa = 120π
If a = c = 1, b = d = 9, what is the area of this rectangle?
| 72 | |
| 27 | |
| 9 | |
| 24 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 1 x 9
a = 9
To multiply binomials, use the FOIL method. Which of the following is not a part of the FOIL method?
Inside |
|
Last |
|
Odd |
|
First |
To multiply binomials, use the FOIL method. FOIL stands for First, Outside, Inside, Last and refers to the position of each term in the parentheses.
If angle a = 65° and angle b = 66° what is the length of angle c?
| 89° | |
| 78° | |
| 116° | |
| 49° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 65° - 66° = 49°
The formula for volume of a cube in terms of height (h), length (l), and width (w) is which of the following?
h2 x l2 x w2 |
|
2lw x 2wh + 2lh |
|
h x l x w |
|
lw x wh + lh |
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.