| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.92 |
| Score | 0% | 58% |
If the length of AB equals the length of BD, point B __________ this line segment.
intersects |
|
trisects |
|
midpoints |
|
bisects |
A line segment is a portion of a line with a measurable length. The midpoint of a line segment is the point exactly halfway between the endpoints. The midpoint bisects (cuts in half) the line segment.
If angle a = 43° and angle b = 54° what is the length of angle c?
| 83° | |
| 81° | |
| 96° | |
| 120° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 43° - 54° = 83°
The dimensions of this cube are height (h) = 9, length (l) = 5, and width (w) = 2. What is the surface area?
| 146 | |
| 262 | |
| 136 | |
| 38 |
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 5 x 2) + (2 x 2 x 9) + (2 x 5 x 9)
sa = (20) + (36) + (90)
sa = 146
Solve for a:
-9a + 4 < 3 - 3a
| a < -\(\frac{5}{8}\) | |
| a < 1 | |
| a < -\(\frac{1}{2}\) | |
| a < \(\frac{1}{6}\) |
To solve this equation, repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the < sign and the answer on the other.
-9a + 4 < 3 - 3a
-9a < 3 - 3a - 4
-9a + 3a < 3 - 4
-6a < -1
a < \( \frac{-1}{-6} \)
a < \(\frac{1}{6}\)
What is the circumference of a circle with a diameter of 9?
| 1π | |
| 11π | |
| 9π | |
| 5π |
The formula for circumference is circle diameter x π:
c = πd
c = 9π