| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.40 |
| Score | 0% | 68% |
If a = c = 1, b = d = 6, and the blue angle = 69°, what is the area of this parallelogram?
| 6 | |
| 24 | |
| 8 | |
| 4 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 1 x 6
a = 6
A(n) __________ is to a parallelogram as a square is to a rectangle.
rhombus |
|
quadrilateral |
|
trapezoid |
|
triangle |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.
Which of the following is not a part of PEMDAS, the acronym for math order of operations?
division |
|
exponents |
|
addition |
|
pairs |
When solving an equation with two variables, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)
If a = 1, b = 7, c = 9, and d = 2, what is the perimeter of this quadrilateral?
| 19 | |
| 18 | |
| 21 | |
| 12 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 1 + 7 + 9 + 2
p = 19
The endpoints of this line segment are at (-2, -1) and (2, -7). What is the slope of this line?
| -2 | |
| -3 | |
| -2\(\frac{1}{2}\) | |
| -1\(\frac{1}{2}\) |
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, -1) and (2, -7) so the slope becomes:
m = \( \frac{\Delta y}{\Delta x} \) = \( \frac{(-7.0) - (-1.0)}{(2) - (-2)} \) = \( \frac{-6}{4} \)