| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.62 |
| Score | 0% | 52% |
If the base of this triangle is 3 and the height is 4, what is the area?
| 6 | |
| 54 | |
| 24 | |
| 27\(\frac{1}{2}\) |
The area of a triangle is equal to ½ base x height:
a = ½bh
a = ½ x 3 x 4 = \( \frac{12}{2} \) = 6
On this circle, line segment CD is the:
diameter |
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chord |
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circumference |
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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).
The dimensions of this cylinder are height (h) = 1 and radius (r) = 9. What is the volume?
| 81π | |
| 576π | |
| 162π | |
| 36π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(92 x 1)
v = 81π
Which of the following statements about a parallelogram is not true?
opposite sides and adjacent angles are equal |
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the perimeter of a parallelogram is the sum of the lengths of all sides |
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a parallelogram is a quadrilateral |
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the area of a parallelogram is base x height |
A parallelogram is a quadrilateral with two sets of parallel sides. Opposite sides (a = c, b = d) and angles (red = red, blue = blue) are equal. The area of a parallelogram is base x height and the perimeter is the sum of the lengths of all sides (a + b + c + d).
Solve for c:
-2c + 2 = \( \frac{c}{4} \)
| -1\(\frac{17}{19}\) | |
| -1\(\frac{15}{41}\) | |
| \(\frac{8}{9}\) | |
| 2\(\frac{2}{17}\) |
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 equal sign and the answer on the other.
-2c + 2 = \( \frac{c}{4} \)
4 x (-2c + 2) = c
(4 x -2c) + (4 x 2) = c
-8c + 8 = c
-8c + 8 - c = 0
-8c - c = -8
-9c = -8
c = \( \frac{-8}{-9} \)
c = \(\frac{8}{9}\)