| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.70 |
| Score | 0% | 74% |
A quadrilateral is a shape with __________ sides.
4 |
|
5 |
|
3 |
|
2 |
A quadrilateral is a shape with four sides. The perimeter of a quadrilateral is the sum of the lengths of its four sides.
What is the circumference of a circle with a radius of 5?
| 15π | |
| 5π | |
| 18π | |
| 10π |
The formula for circumference is circle diameter x π. Circle diameter is 2 x radius:
c = πd
c = π(2 * r)
c = π(2 * 5)
c = 10π
If the base of this triangle is 5 and the height is 5, what is the area?
| 35 | |
| 12\(\frac{1}{2}\) | |
| 38\(\frac{1}{2}\) | |
| 40\(\frac{1}{2}\) |
The area of a triangle is equal to ½ base x height:
a = ½bh
a = ½ x 5 x 5 = \( \frac{25}{2} \) = 12\(\frac{1}{2}\)
A right angle measures:
45° |
|
180° |
|
90° |
|
360° |
A right angle measures 90 degrees and is the intersection of two perpendicular lines. In diagrams, a right angle is indicated by a small box completing a square with the perpendicular lines.
Solve for x:
-3x - 4 = -3 + 3x
| 1\(\frac{1}{3}\) | |
| 9 | |
| -1 | |
| -\(\frac{1}{6}\) |
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 equal sign and the answer on the other.
-3x - 4 = -3 + 3x
-3x = -3 + 3x + 4
-3x - 3x = -3 + 4
-6x = 1
x = \( \frac{1}{-6} \)
x = -\(\frac{1}{6}\)