| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.37 |
| Score | 0% | 67% |
For this diagram, the Pythagorean theorem states that b2 = ?
c2 + a2 |
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a2 - c2 |
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c - a |
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c2 - a2 |
The Pythagorean theorem defines the relationship between the side lengths of a right triangle. The length of the hypotenuse squared (c2) is equal to the sum of the two perpendicular sides squared (a2 + b2): c2 = a2 + b2 or, solved for c, \(c = \sqrt{a + b}\)
Breaking apart a quadratic expression into a pair of binomials is called:
squaring |
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deconstructing |
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normalizing |
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factoring |
To factor a quadratic expression, apply the FOIL (First, Outside, Inside, Last) method in reverse.
On this circle, a line segment connecting point A to point D is called:
diameter |
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circumference |
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chord |
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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).
If side x = 11cm, side y = 8cm, and side z = 11cm what is the perimeter of this triangle?
| 34cm | |
| 24cm | |
| 23cm | |
| 30cm |
The perimeter of a triangle is the sum of the lengths of its sides:
p = x + y + z
p = 11cm + 8cm + 11cm = 30cm
The dimensions of this cube are height (h) = 7, length (l) = 6, and width (w) = 2. What is the volume?
| 84 | |
| 27 | |
| 48 | |
| 2 |
The volume of a cube is height x length x width:
v = h x l x w
v = 7 x 6 x 2
v = 84