| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.52 |
| Score | 0% | 70% |
The formula for the area of a circle is which of the following?
a = π r |
|
a = π r2 |
|
a = π d |
|
a = π d2 |
The circumference of a circle is the distance around its perimeter and equals π (approx. 3.14159) x diameter: c = π d. The area of a circle is π x (radius)2 : a = π r2.
The dimensions of this cube are height (h) = 1, length (l) = 9, and width (w) = 7. What is the volume?
| 15 | |
| 384 | |
| 63 | |
| 336 |
The volume of a cube is height x length x width:
v = h x l x w
v = 1 x 9 x 7
v = 63
A trapezoid is a quadrilateral with one set of __________ sides.
equal length |
|
parallel |
|
right angle |
|
equal angle |
A trapezoid is a quadrilateral with one set of parallel sides.
The dimensions of this cylinder are height (h) = 6 and radius (r) = 5. What is the surface area?
| 110π | |
| 20π | |
| 36π | |
| 56π |
The surface area of a cylinder is 2πr2 + 2πrh:
sa = 2πr2 + 2πrh
sa = 2π(52) + 2π(5 x 6)
sa = 2π(25) + 2π(30)
sa = (2 x 25)π + (2 x 30)π
sa = 50π + 60π
sa = 110π
If BD = 11 and AD = 20, AB = ?
| 9 | |
| 16 | |
| 15 | |
| 13 |
The entire length of this line is represented by AD which is AB + BD:
AD = AB + BD
Solving for AB:AB = AD - BD