| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.87 |
| Score | 0% | 57% |
If AD = 11 and BD = 5, AB = ?
| 6 | |
| 1 | |
| 17 | |
| 13 |
The entire length of this line is represented by AD which is AB + BD:
AD = AB + BD
Solving for AB:AB = AD - BDWhich of the following statements about a parallelogram is not true?
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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opposite sides and adjacent angles are equal |
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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:
7c + 1 = \( \frac{c}{-8} \)
| -\(\frac{8}{57}\) | |
| -1\(\frac{1}{7}\) | |
| 10\(\frac{2}{3}\) | |
| -1 |
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.
7c + 1 = \( \frac{c}{-8} \)
-8 x (7c + 1) = c
(-8 x 7c) + (-8 x 1) = c
-56c - 8 = c
-56c - 8 - c = 0
-56c - c = 8
-57c = 8
c = \( \frac{8}{-57} \)
c = -\(\frac{8}{57}\)
Which types of triangles will always have at least two sides of equal length?
isosceles and right |
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equilateral, isosceles and right |
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equilateral and right |
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equilateral and isosceles |
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.
The dimensions of this cylinder are height (h) = 3 and radius (r) = 2. What is the volume?
| 324π | |
| 294π | |
| 225π | |
| 12π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(22 x 3)
v = 12π