| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.01 |
| Score | 0% | 60% |
The dimensions of this cube are height (h) = 1, length (l) = 7, and width (w) = 7. What is the surface area?
| 266 | |
| 126 | |
| 110 | |
| 168 |
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 7) + (2 x 7 x 1) + (2 x 7 x 1)
sa = (98) + (14) + (14)
sa = 126
If a = c = 3, b = d = 2, what is the area of this rectangle?
| 6 | |
| 32 | |
| 12 | |
| 8 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 3 x 2
a = 6
The dimensions of this trapezoid are a = 5, b = 9, c = 8, d = 4, and h = 3. What is the area?
| 16\(\frac{1}{2}\) | |
| 19\(\frac{1}{2}\) | |
| 13\(\frac{1}{2}\) | |
| 25 |
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(9 + 4)(3)
a = ½(13)(3)
a = ½(39) = \( \frac{39}{2} \)
a = 19\(\frac{1}{2}\)
If the base of this triangle is 6 and the height is 4, what is the area?
| 12 | |
| 27\(\frac{1}{2}\) | |
| 77 | |
| 49 |
The area of a triangle is equal to ½ base x height:
a = ½bh
a = ½ x 6 x 4 = \( \frac{24}{2} \) = 12
When two lines intersect, adjacent angles are __________ (they add up to 180°) and angles across from either other are __________ (they're equal).
supplementary, vertical |
|
acute, obtuse |
|
obtuse, acute |
|
vertical, supplementary |
Angles around a line add up to 180°. Angles around a point add up to 360°. When two lines intersect, adjacent angles are supplementary (they add up to 180°) and angles across from either other are vertical (they're equal).