| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.43 |
| Score | 0% | 69% |
If the base of this triangle is 9 and the height is 5, what is the area?
| 22\(\frac{1}{2}\) | |
| 45 | |
| 63 | |
| 60 |
The area of a triangle is equal to ½ base x height:
a = ½bh
a = ½ x 9 x 5 = \( \frac{45}{2} \) = 22\(\frac{1}{2}\)
If angle a = 61° and angle b = 37° what is the length of angle c?
| 74° | |
| 133° | |
| 83° | |
| 82° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 61° - 37° = 82°
Which of the following expressions contains exactly two terms?
monomial |
|
polynomial |
|
binomial |
|
quadratic |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.
The formula for volume of a cube in terms of height (h), length (l), and width (w) is which of the following?
2lw x 2wh + 2lh |
|
h x l x w |
|
lw x wh + lh |
|
h2 x l2 x w2 |
A cube is a rectangular solid box with a height (h), length (l), and width (w). The volume is h x l x w and the surface area is 2lw x 2wh + 2lh.
If side a = 8, side b = 6, what is the length of the hypotenuse of this right triangle?
| \( \sqrt{40} \) | |
| 10 | |
| \( \sqrt{65} \) | |
| \( \sqrt{90} \) |
According to the Pythagorean theorem, the hypotenuse squared is equal to the sum of the two perpendicular sides squared:
c2 = a2 + b2
c2 = 82 + 62
c2 = 64 + 36
c2 = 100
c = \( \sqrt{100} \)
c = 10