| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.17 |
| Score | 0% | 63% |
Order the following types of angle from least number of degrees to most number of degrees.
right, obtuse, acute |
|
acute, right, obtuse |
|
acute, obtuse, right |
|
right, acute, obtuse |
An acute angle measures less than 90°, a right angle measures 90°, and an obtuse angle measures more than 90°.
A cylinder with a radius (r) and a height (h) has a surface area of:
π r2h2 |
|
π r2h |
|
2(π r2) + 2π rh |
|
4π r2 |
A cylinder is a solid figure with straight parallel sides and a circular or oval cross section with a radius (r) and a height (h). The volume of a cylinder is π r2h and the surface area is 2(π r2) + 2π rh.
Solve for b:
-9b + 6 > -4 - 7b
| b > 5 | |
| b > \(\frac{1}{9}\) | |
| b > 1\(\frac{2}{7}\) | |
| b > -1\(\frac{1}{2}\) |
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.
-9b + 6 > -4 - 7b
-9b > -4 - 7b - 6
-9b + 7b > -4 - 6
-2b > -10
b > \( \frac{-10}{-2} \)
b > 5
If the base of this triangle is 1 and the height is 8, what is the area?
| 37\(\frac{1}{2}\) | |
| 71\(\frac{1}{2}\) | |
| 4 | |
| 50 |
The area of a triangle is equal to ½ base x height:
a = ½bh
a = ½ x 1 x 8 = \( \frac{8}{2} \) = 4
If a = c = 1, b = d = 4, what is the area of this rectangle?
| 21 | |
| 4 | |
| 32 | |
| 63 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 1 x 4
a = 4