| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.35 |
| Score | 0% | 67% |
A quadrilateral is a shape with __________ sides.
5 |
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2 |
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3 |
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4 |
A quadrilateral is a shape with four sides. The perimeter of a quadrilateral is the sum of the lengths of its four sides.
What is 3a3 + 4a3?
| a36 | |
| 12a3 | |
| 7a3 | |
| -1 |
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.
3a3 + 4a3 = 7a3
A(n) __________ is to a parallelogram as a square is to a rectangle.
rhombus |
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quadrilateral |
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trapezoid |
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triangle |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.
Solve for y:
-2y + 4 < 3 - 4y
| y < \(\frac{1}{4}\) | |
| y < \(\frac{4}{5}\) | |
| y < 1\(\frac{1}{2}\) | |
| y < -\(\frac{1}{2}\) |
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 < sign and the answer on the other.
-2y + 4 < 3 - 4y
-2y < 3 - 4y - 4
-2y + 4y < 3 - 4
2y < -1
y < \( \frac{-1}{2} \)
y < -\(\frac{1}{2}\)
If a = c = 6, b = d = 2, and the blue angle = 54°, what is the area of this parallelogram?
| 12 | |
| 3 | |
| 15 | |
| 40 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 6 x 2
a = 12