| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 4.00 |
| Score | 0% | 80% |
A quadrilateral is a shape with __________ sides.
2 |
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3 |
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4 |
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5 |
A quadrilateral is a shape with four sides. The perimeter of a quadrilateral is the sum of the lengths of its four sides.
What is 9a - 7a?
| 63a2 | |
| 63a | |
| 2a | |
| 16 |
To combine like terms, add or subtract the coefficients (the numbers that come before the variables) of terms that have the same variable raised to the same exponent.
9a - 7a = 2a
The dimensions of this cube are height (h) = 3, length (l) = 2, and width (w) = 2. What is the volume?
| 72 | |
| 252 | |
| 63 | |
| 12 |
The volume of a cube is height x length x width:
v = h x l x w
v = 3 x 2 x 2
v = 12
What is 3a8 + 7a8?
| 21a8 | |
| -4a16 | |
| 10a8 | |
| 10a16 |
To combine like terms, add or subtract the coefficients (the numbers that come before the variables) of terms that have the same variable raised to the same exponent.
3a8 + 7a8 = 10a8
If angle a = 22° and angle b = 42° what is the length of angle c?
| 96° | |
| 116° | |
| 74° | |
| 102° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 22° - 42° = 116°