| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 4.00 |
| Score | 0% | 80% |
If a = 4, b = 1, c = 3, and d = 7, what is the perimeter of this quadrilateral?
| 22 | |
| 17 | |
| 24 | |
| 15 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 4 + 1 + 3 + 7
p = 15
If a = c = 5, b = d = 2, what is the area of this rectangle?
| 10 | |
| 24 | |
| 36 | |
| 32 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 5 x 2
a = 10
Which of the following expressions contains exactly two terms?
quadratic |
|
polynomial |
|
binomial |
|
monomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.
If angle a = 61° and angle b = 42° what is the length of angle d?
| 139° | |
| 144° | |
| 128° | |
| 119° |
An exterior angle of a triangle is equal to the sum of the two interior angles that are opposite:
d° = b° + c°
To find angle c, remember that the sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 61° - 42° = 77°
So, d° = 42° + 77° = 119°
A shortcut to get this answer is to remember that angles around a line add up to 180°:
a° + d° = 180°
d° = 180° - a°
d° = 180° - 61° = 119°
A quadrilateral is a shape with __________ sides.
2 |
|
4 |
|
5 |
|
3 |
A quadrilateral is a shape with four sides. The perimeter of a quadrilateral is the sum of the lengths of its four sides.