| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.83 |
| Score | 0% | 77% |
If a = c = 4, b = d = 2, what is the area of this rectangle?
| 30 | |
| 8 | |
| 49 | |
| 4 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 4 x 2
a = 8
The formula for the area of a circle is which of the following?
a = π r |
|
a = π r2 |
|
a = π d |
|
a = π d2 |
The circumference of a circle is the distance around its perimeter and equals π (approx. 3.14159) x diameter: c = π d. The area of a circle is π x (radius)2 : a = π r2.
If b = 5 and z = -8, what is the value of -4b(b - z)?
| -72 | |
| 432 | |
| -260 | |
| -180 |
To solve this equation, 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.)
-4b(b - z)
-4(5)(5 + 8)
-4(5)(13)
(-20)(13)
-260
A coordinate grid is composed of which of the following?
y-axis |
|
x-axis |
|
all of these |
|
origin |
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 trapezoid is a quadrilateral with one set of __________ sides.
equal length |
|
equal angle |
|
right angle |
|
parallel |
A trapezoid is a quadrilateral with one set of parallel sides.