| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.18 |
| Score | 0% | 64% |
A trapezoid is a quadrilateral with one set of __________ sides.
parallel |
|
equal length |
|
right angle |
|
equal angle |
A trapezoid is a quadrilateral with one set of parallel sides.
The dimensions of this cube are height (h) = 1, length (l) = 8, and width (w) = 5. What is the volume?
| 84 | |
| 18 | |
| 40 | |
| 336 |
The volume of a cube is height x length x width:
v = h x l x w
v = 1 x 8 x 5
v = 40
If the length of AB equals the length of BD, point B __________ this line segment.
trisects |
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bisects |
|
midpoints |
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intersects |
A line segment is a portion of a line with a measurable length. The midpoint of a line segment is the point exactly halfway between the endpoints. The midpoint bisects (cuts in half) the line segment.
Simplify (7a)(5ab) - (5a2)(8b).
| -5a2b | |
| 75ab2 | |
| 75a2b | |
| 156a2b |
To multiply monomials, multiply the coefficients (the numbers that come before the variables) of each term, add the exponents of like variables, and multiply the different variables together.
(7a)(5ab) - (5a2)(8b)
(7 x 5)(a x a x b) - (5 x 8)(a2 x b)
(35)(a1+1 x b) - (40)(a2b)
35a2b - 40a2b
-5a2b
If angle a = 67° and angle b = 47° what is the length of angle d?
| 113° | |
| 149° | |
| 134° | |
| 155° |
An exterior angle of a triangle is equal to the sum of the two interior angles that are opposite:
d° = b° + c°
To find angle c, remember that the sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 67° - 47° = 66°
So, d° = 47° + 66° = 113°
A shortcut to get this answer is to remember that angles around a line add up to 180°:
a° + d° = 180°
d° = 180° - a°
d° = 180° - 67° = 113°