| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.20 |
| Score | 0% | 64% |
On this circle, a line segment connecting point A to point D is called:
chord |
|
diameter |
|
circumference |
|
radius |
A circle is a figure in which each point around its perimeter is an equal distance from the center. The radius of a circle is the distance between the center and any point along its perimeter. A chord is a line segment that connects any two points along its perimeter. The diameter of a circle is the length of a chord that passes through the center of the circle and equals twice the circle's radius (2r).
On this circle, line segment CD is the:
radius |
|
circumference |
|
chord |
|
diameter |
A circle is a figure in which each point around its perimeter is an equal distance from the center. The radius of a circle is the distance between the center and any point along its perimeter. A chord is a line segment that connects any two points along its perimeter. The diameter of a circle is the length of a chord that passes through the center of the circle and equals twice the circle's radius (2r).
If a = c = 7, b = d = 4, and the blue angle = 53°, what is the area of this parallelogram?
| 28 | |
| 6 | |
| 15 | |
| 30 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 7 x 4
a = 28
What is 7a + 4a?
| 3 | |
| 28a2 | |
| 11a | |
| 28a |
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.
7a + 4a = 11a
If a = c = 7, b = d = 5, what is the area of this rectangle?
| 10 | |
| 12 | |
| 35 | |
| 6 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 7 x 5
a = 35