| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.15 |
| Score | 0% | 63% |
If the base of this triangle is 4 and the height is 6, what is the area?
| 37\(\frac{1}{2}\) | |
| 12 | |
| 21 | |
| 65 |
The area of a triangle is equal to ½ base x height:
a = ½bh
a = ½ x 4 x 6 = \( \frac{24}{2} \) = 12
If BD = 9 and AD = 15, AB = ?
| 6 | |
| 19 | |
| 9 | |
| 11 |
The entire length of this line is represented by AD which is AB + BD:
AD = AB + BD
Solving for AB:AB = AD - BDWhat is 3a3 + 6a3?
| 9a6 | |
| -3 | |
| 9a3 | |
| 9 |
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 + 6a3 = 9a3
Which types of triangles will always have at least two sides of equal length?
equilateral and right |
|
isosceles and right |
|
equilateral, isosceles and right |
|
equilateral and isosceles |
An isosceles triangle has two sides of equal length. An equilateral triangle has three sides of equal length. In a right triangle, two sides meet at a right angle.
The dimensions of this trapezoid are a = 6, b = 6, c = 8, d = 3, and h = 4. What is the area?
| 18 | |
| 22 | |
| 10 | |
| 8 |
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 + 3)(4)
a = ½(9)(4)
a = ½(36) = \( \frac{36}{2} \)
a = 18