| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.63 |
| Score | 0% | 73% |
The dimensions of this cylinder are height (h) = 4 and radius (r) = 9. What is the volume?
| 324π | |
| 6π | |
| 1π | |
| 49π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(92 x 4)
v = 324π
The dimensions of this cube are height (h) = 1, length (l) = 4, and width (w) = 8. What is the volume?
| 384 | |
| 105 | |
| 200 | |
| 32 |
The volume of a cube is height x length x width:
v = h x l x w
v = 1 x 4 x 8
v = 32
For this diagram, the Pythagorean theorem states that b2 = ?
c - a |
|
a2 - c2 |
|
c2 - a2 |
|
c2 + a2 |
The Pythagorean theorem defines the relationship between the side lengths of a right triangle. The length of the hypotenuse squared (c2) is equal to the sum of the two perpendicular sides squared (a2 + b2): c2 = a2 + b2 or, solved for c, \(c = \sqrt{a + b}\)
If side x = 11cm, side y = 8cm, and side z = 12cm what is the perimeter of this triangle?
| 41cm | |
| 29cm | |
| 33cm | |
| 31cm |
The perimeter of a triangle is the sum of the lengths of its sides:
p = x + y + z
p = 11cm + 8cm + 12cm = 31cm
If a = 3, b = 2, c = 4, and d = 9, what is the perimeter of this quadrilateral?
| 17 | |
| 21 | |
| 18 | |
| 28 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 3 + 2 + 4 + 9
p = 18