| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.72 |
| Score | 0% | 74% |
If angle a = 35° and angle b = 31° what is the length of angle c?
| 97° | |
| 83° | |
| 114° | |
| 78° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 35° - 31° = 114°
What is the area of a circle with a radius of 3?
| 5π | |
| 64π | |
| 9π | |
| 7π |
The formula for area is πr2:
a = πr2
a = π(32)
a = 9π
Which of the following expressions contains exactly two terms?
binomial |
|
monomial |
|
quadratic |
|
polynomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.
If a = 7, b = 5, c = 1, and d = 7, what is the perimeter of this quadrilateral?
| 21 | |
| 20 | |
| 23 | |
| 31 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 7 + 5 + 1 + 7
p = 20
The dimensions of this cylinder are height (h) = 7 and radius (r) = 9. What is the volume?
| 98π | |
| 3π | |
| 567π | |
| 343π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(92 x 7)
v = 567π