| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.32 |
| Score | 0% | 66% |
A(n) __________ is to a parallelogram as a square is to a rectangle.
triangle |
|
trapezoid |
|
rhombus |
|
quadrilateral |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.
If a = c = 8, b = d = 6, what is the area of this rectangle?
| 48 | |
| 40 | |
| 12 | |
| 63 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 8 x 6
a = 48
What is the circumference of a circle with a diameter of 17?
| 6π | |
| 18π | |
| 17π | |
| 7π |
The formula for circumference is circle diameter x π:
c = πd
c = 17π
If angle a = 64° and angle b = 56° what is the length of angle c?
| 108° | |
| 60° | |
| 98° | |
| 63° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 64° - 56° = 60°
Solve for z:
z2 - 14z + 49 = 0
| 9 or -8 | |
| 7 | |
| 4 or 2 | |
| 2 or -7 |
The first step to solve a quadratic equation that's set to zero is to factor the quadratic equation:
z2 - 14z + 49 = 0
(z - 7)(z - 7) = 0
For this expression to be true, the left side of the expression must equal zero. Therefore, (z - 7) must equal zero:
If (z - 7) = 0, z must equal 7
So the solution is that z = 7