| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.08 |
| Score | 0% | 62% |
If a = c = 7, b = d = 5, and the blue angle = 58°, what is the area of this parallelogram?
| 20 | |
| 18 | |
| 35 | |
| 8 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 7 x 5
a = 35
On this circle, line segment CD is the:
circumference |
|
diameter |
|
chord |
|
radius |
A circle is a figure in which each point around its perimeter is an equal distance from the center. The radius of a circle is the distance between the center and any point along its perimeter. A chord is a line segment that connects any two points along its perimeter. The diameter of a circle is the length of a chord that passes through the center of the circle and equals twice the circle's radius (2r).
Breaking apart a quadratic expression into a pair of binomials is called:
squaring |
|
normalizing |
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deconstructing |
|
factoring |
To factor a quadratic expression, apply the FOIL (First, Outside, Inside, Last) method in reverse.
The dimensions of this cube are height (h) = 5, length (l) = 7, and width (w) = 9. What is the surface area?
| 198 | |
| 286 | |
| 40 | |
| 104 |
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 7 x 9) + (2 x 9 x 5) + (2 x 7 x 5)
sa = (126) + (90) + (70)
sa = 286
If angle a = 49° and angle b = 66° what is the length of angle c?
| 85° | |
| 89° | |
| 65° | |
| 92° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 49° - 66° = 65°