| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.26 |
| Score | 0% | 65% |
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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the area of a parallelogram is base x height |
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a parallelogram is a quadrilateral |
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).
If BD = 11 and AD = 19, AB = ?
| 1 | |
| 3 | |
| 5 | |
| 8 |
The entire length of this line is represented by AD which is AB + BD:
AD = AB + BD
Solving for AB:AB = AD - BDIf a = c = 6, b = d = 8, and the blue angle = 60°, what is the area of this parallelogram?
| 54 | |
| 8 | |
| 24 | |
| 48 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 6 x 8
a = 48
If the base of this triangle is 2 and the height is 1, what is the area?
| 1 | |
| 49\(\frac{1}{2}\) | |
| 21 | |
| 18 |
The area of a triangle is equal to ½ base x height:
a = ½bh
a = ½ x 2 x 1 = \( \frac{2}{2} \) = 1
What is 3a2 + 4a2?
| -1 | |
| 7a2 | |
| -a4 | |
| a24 |
To combine like terms, add or subtract the coefficients (the numbers that come before the variables) of terms that have the same variable raised to the same exponent.
3a2 + 4a2 = 7a2