| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 4.04 |
| Score | 0% | 81% |
If a = 6, b = 1, c = 5, and d = 6, what is the perimeter of this quadrilateral?
| 16 | |
| 23 | |
| 18 | |
| 19 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 6 + 1 + 5 + 6
p = 18
If a = c = 2, b = d = 4, and the blue angle = 68°, what is the area of this parallelogram?
| 9 | |
| 7 | |
| 8 | |
| 35 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 2 x 4
a = 8
A coordinate grid is composed of which of the following?
all of these |
|
origin |
|
x-axis |
|
y-axis |
The coordinate grid is composed of a horizontal x-axis and a vertical y-axis. The center of the grid, where the x-axis and y-axis meet, is called the origin.
A right angle measures:
180° |
|
360° |
|
45° |
|
90° |
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.
What is the circumference of a circle with a diameter of 19?
| 4π | |
| 19π | |
| 15π | |
| 16π |
The formula for circumference is circle diameter x π:
c = πd
c = 19π