| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.15 |
| Score | 0% | 63% |
A trapezoid is a quadrilateral with one set of __________ sides.
parallel |
|
right angle |
|
equal angle |
|
equal length |
A trapezoid is a quadrilateral with one set of parallel sides.
The dimensions of this cylinder are height (h) = 2 and radius (r) = 8. What is the surface area?
| 160π | |
| 80π | |
| 6π | |
| 40π |
The surface area of a cylinder is 2πr2 + 2πrh:
sa = 2πr2 + 2πrh
sa = 2π(82) + 2π(8 x 2)
sa = 2π(64) + 2π(16)
sa = (2 x 64)π + (2 x 16)π
sa = 128π + 32π
sa = 160π
On this circle, a line segment connecting point A to point D is called:
radius |
|
chord |
|
circumference |
|
diameter |
A circle is a figure in which each point around its perimeter is an equal distance from the center. The radius of a circle is the distance between the center and any point along its perimeter. A chord is a line segment that connects any two points along its perimeter. The diameter of a circle is the length of a chord that passes through the center of the circle and equals twice the circle's radius (2r).
If c = -2 and z = 6, what is the value of -8c(c - z)?
| -28 | |
| 288 | |
| -128 | |
| 15 |
To solve this equation, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)
-8c(c - z)
-8(-2)(-2 - 6)
-8(-2)(-8)
(16)(-8)
-128
The dimensions of this cube are height (h) = 6, length (l) = 1, and width (w) = 1. What is the volume?
| 128 | |
| 45 | |
| 6 | |
| 54 |
The volume of a cube is height x length x width:
v = h x l x w
v = 6 x 1 x 1
v = 6