| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.06 |
| Score | 0% | 61% |
On this circle, line segment AB is the:
diameter |
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radius |
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circumference |
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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).
If the base of this triangle is 7 and the height is 6, what is the area?
| 60 | |
| 21 | |
| 71\(\frac{1}{2}\) | |
| 40 |
The area of a triangle is equal to ½ base x height:
a = ½bh
a = ½ x 7 x 6 = \( \frac{42}{2} \) = 21
Which types of triangles will always have at least two sides of equal length?
equilateral and right |
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equilateral, isosceles and right |
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equilateral and isosceles |
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isosceles and right |
An isosceles triangle has two sides of equal length. An equilateral triangle has three sides of equal length. In a right triangle, two sides meet at a right angle.
Solve for b:
7b - 3 < -5 - 9b
| b < -\(\frac{2}{3}\) | |
| b < 1\(\frac{2}{5}\) | |
| b < -2\(\frac{1}{4}\) | |
| b < -\(\frac{1}{8}\) |
To solve this equation, repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the < sign and the answer on the other.
7b - 3 < -5 - 9b
7b < -5 - 9b + 3
7b + 9b < -5 + 3
16b < -2
b < \( \frac{-2}{16} \)
b < -\(\frac{1}{8}\)
A trapezoid is a quadrilateral with one set of __________ sides.
right angle |
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equal length |
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parallel |
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equal angle |
A trapezoid is a quadrilateral with one set of parallel sides.