| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.33 |
| Score | 0% | 67% |
If angle a = 44° and angle b = 59° what is the length of angle c?
| 93° | |
| 90° | |
| 100° | |
| 77° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 44° - 59° = 77°
A(n) __________ is to a parallelogram as a square is to a rectangle.
trapezoid |
|
quadrilateral |
|
triangle |
|
rhombus |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.
The dimensions of this cylinder are height (h) = 9 and radius (r) = 3. What is the volume?
| 648π | |
| 72π | |
| 32π | |
| 81π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(32 x 9)
v = 81π
If a = c = 4, b = d = 8, what is the area of this rectangle?
| 30 | |
| 32 | |
| 12 | |
| 1 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 4 x 8
a = 32
If b = -8 and z = 6, what is the value of 2b(b - z)?
| -42 | |
| -165 | |
| 224 | |
| 0 |
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.)
2b(b - z)
2(-8)(-8 - 6)
2(-8)(-14)
(-16)(-14)
224