| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.45 |
| Score | 0% | 69% |
If a = c = 5, b = d = 8, and the blue angle = 53°, what is the area of this parallelogram?
| 4 | |
| 18 | |
| 40 | |
| 9 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 5 x 8
a = 40
A right angle measures:
180° |
|
90° |
|
360° |
|
45° |
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.
A trapezoid is a quadrilateral with one set of __________ sides.
parallel |
|
right angle |
|
equal length |
|
equal angle |
A trapezoid is a quadrilateral with one set of parallel sides.
What is 6a7 + 2a7?
| 12a7 | |
| 8a7 | |
| 8a14 | |
| 8 |
To combine like terms, add or subtract the coefficients (the numbers that come before the variables) of terms that have the same variable raised to the same exponent.
6a7 + 2a7 = 8a7
The endpoints of this line segment are at (-2, 6) and (2, 0). What is the slope of this line?
| 3 | |
| \(\frac{1}{2}\) | |
| -1\(\frac{1}{2}\) | |
| 2 |
The slope of this line is the change in y divided by the change in x. The endpoints of this line segment are at (-2, 6) and (2, 0) so the slope becomes:
m = \( \frac{\Delta y}{\Delta x} \) = \( \frac{(0.0) - (6.0)}{(2) - (-2)} \) = \( \frac{-6}{4} \)