| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.53 |
| Score | 0% | 71% |
If a = 4, b = 2, c = 5, and d = 4, what is the perimeter of this quadrilateral?
| 16 | |
| 17 | |
| 15 | |
| 14 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 4 + 2 + 5 + 4
p = 15
Simplify 2a x 8b.
| 16\( \frac{b}{a} \) | |
| 10ab | |
| 16\( \frac{a}{b} \) | |
| 16ab |
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.
2a x 8b = (2 x 8) (a x b) = 16ab
If the length of AB equals the length of BD, point B __________ this line segment.
midpoints |
|
intersects |
|
bisects |
|
trisects |
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.
If a = c = 3, b = d = 2, what is the area of this rectangle?
| 8 | |
| 35 | |
| 25 | |
| 6 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 3 x 2
a = 6
Which of the following statements about a triangle is not true?
perimeter = sum of side lengths |
|
exterior angle = sum of two adjacent interior angles |
|
sum of interior angles = 180° |
|
area = ½bh |
A triangle is a three-sided polygon. It has three interior angles that add up to 180° (a + b + c = 180°). An exterior angle of a triangle is equal to the sum of the two interior angles that are opposite (d = b + c). The perimeter of a triangle is equal to the sum of the lengths of its three sides, the height of a triangle is equal to the length from the base to the opposite vertex (angle) and the area equals one-half triangle base x height: a = ½ base x height.