| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.09 |
| Score | 0% | 62% |
The formula for the area of a circle is which of the following?
c = π r |
|
c = π d2 |
|
c = π r2 |
|
c = π d |
The circumference of a circle is the distance around its perimeter and equals π (approx. 3.14159) x diameter: c = π d. The area of a circle is π x (radius)2 : a = π r2.
The dimensions of this cylinder are height (h) = 8 and radius (r) = 4. What is the volume?
| 343π | |
| 108π | |
| 128π | |
| 112π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(42 x 8)
v = 128π
If a = c = 2, b = d = 1, and the blue angle = 61°, what is the area of this parallelogram?
| 2 | |
| 7 | |
| 4 | |
| 36 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 2 x 1
a = 2
Which of the following is not a part of PEMDAS, the acronym for math order of operations?
exponents |
|
pairs |
|
addition |
|
division |
When solving an equation with two variables, 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.)
The formula for volume of a cube in terms of height (h), length (l), and width (w) is which of the following?
h2 x l2 x w2 |
|
h x l x w |
|
lw x wh + lh |
|
2lw x 2wh + 2lh |
A cube is a rectangular solid box with a height (h), length (l), and width (w). The volume is h x l x w and the surface area is 2lw x 2wh + 2lh.