| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.66 |
| Score | 0% | 73% |
A right angle measures:
45° |
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180° |
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360° |
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90° |
A right angle measures 90 degrees and is the intersection of two perpendicular lines. In diagrams, a right angle is indicated by a small box completing a square with the perpendicular lines.
If a = c = 1, b = d = 9, and the blue angle = 62°, what is the area of this parallelogram?
| 21 | |
| 35 | |
| 9 | |
| 48 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 1 x 9
a = 9
If a = c = 2, b = d = 7, what is the area of this rectangle?
| 12 | |
| 42 | |
| 14 | |
| 7 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 2 x 7
a = 14
Simplify 3a x 7b.
| 10ab | |
| 21ab | |
| 21a2b2 | |
| 21\( \frac{a}{b} \) |
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.
3a x 7b = (3 x 7) (a x b) = 21ab
If the length of AB equals the length of BD, point B __________ this line segment.
trisects |
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intersects |
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midpoints |
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bisects |
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.