| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.88 |
| Score | 0% | 58% |
On this circle, line segment CD is the:
circumference |
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chord |
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radius |
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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).
A(n) __________ is to a parallelogram as a square is to a rectangle.
rhombus |
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quadrilateral |
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trapezoid |
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triangle |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.
Solve for y:
9y + 2 < \( \frac{y}{3} \)
| y < \(\frac{2}{5}\) | |
| y < 2\(\frac{2}{5}\) | |
| y < 1\(\frac{11}{19}\) | |
| y < -\(\frac{3}{13}\) |
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.
9y + 2 < \( \frac{y}{3} \)
3 x (9y + 2) < y
(3 x 9y) + (3 x 2) < y
27y + 6 < y
27y + 6 - y < 0
27y - y < -6
26y < -6
y < \( \frac{-6}{26} \)
y < -\(\frac{3}{13}\)
Order the following types of angle from least number of degrees to most number of degrees.
acute, right, obtuse |
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right, acute, obtuse |
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acute, obtuse, right |
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right, obtuse, acute |
An acute angle measures less than 90°, a right angle measures 90°, and an obtuse angle measures more than 90°.
If angle a = 29° and angle b = 30° what is the length of angle c?
| 121° | |
| 110° | |
| 74° | |
| 94° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 29° - 30° = 121°