| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.59 |
| Score | 0% | 72% |
On this circle, a line segment connecting point A to point D is called:
circumference |
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diameter |
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radius |
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chord |
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).
The dimensions of this cube are height (h) = 7, length (l) = 8, and width (w) = 4. What is the volume?
| 108 | |
| 6 | |
| 70 | |
| 224 |
The volume of a cube is height x length x width:
v = h x l x w
v = 7 x 8 x 4
v = 224
Order the following types of angle from least number of degrees to most number of degrees.
acute, obtuse, right |
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right, obtuse, acute |
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acute, right, obtuse |
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right, acute, obtuse |
An acute angle measures less than 90°, a right angle measures 90°, and an obtuse angle measures more than 90°.
What is the circumference of a circle with a diameter of 3?
| 3π | |
| 2π | |
| 36π | |
| 12π |
The formula for circumference is circle diameter x π:
c = πd
c = 3π
Simplify 9a x 4b.
| 36\( \frac{b}{a} \) | |
| 36a2b2 | |
| 36\( \frac{a}{b} \) | |
| 36ab |
To multiply monomials, multiply the coefficients (the numbers that come before the variables) of each term, add the exponents of like variables, and multiply the different variables together.
9a x 4b = (9 x 4) (a x b) = 36ab