| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.76 |
| Score | 0% | 75% |
The dimensions of this trapezoid are a = 4, b = 6, c = 6, d = 6, and h = 3. What is the area?
| 26 | |
| 16 | |
| 20 | |
| 18 |
The area of a trapezoid is one-half the sum of the lengths of the parallel sides multiplied by the height:
a = ½(b + d)(h)
a = ½(6 + 6)(3)
a = ½(12)(3)
a = ½(36) = \( \frac{36}{2} \)
a = 18
If a = 5, b = 7, c = 6, and d = 2, what is the perimeter of this quadrilateral?
| 20 | |
| 17 | |
| 28 | |
| 15 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 5 + 7 + 6 + 2
p = 20
Order the following types of angle from least number of degrees to most number of degrees.
acute, obtuse, right |
|
right, obtuse, acute |
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acute, right, obtuse |
|
right, acute, obtuse |
An acute angle measures less than 90°, a right angle measures 90°, and an obtuse angle measures more than 90°.
What is 9a + 2a?
| 11a | |
| 7a2 | |
| 18a | |
| 18a2 |
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.
9a + 2a = 11a
Which of the following expressions contains exactly two terms?
binomial |
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monomial |
|
quadratic |
|
polynomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.