| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.81 |
| Score | 0% | 76% |
A quadrilateral is a shape with __________ sides.
4 |
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3 |
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2 |
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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.
If a = c = 2, b = d = 7, and the blue angle = 53°, what is the area of this parallelogram?
| 8 | |
| 10 | |
| 14 | |
| 18 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 2 x 7
a = 14
To multiply binomials, use the FOIL method. Which of the following is not a part of the FOIL method?
Inside |
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Odd |
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Last |
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First |
To multiply binomials, use the FOIL method. FOIL stands for First, Outside, Inside, Last and refers to the position of each term in the parentheses.
If angle a = 29° and angle b = 67° what is the length of angle d?
| 151° | |
| 144° | |
| 116° | |
| 110° |
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° - 29° - 67° = 84°
So, d° = 67° + 84° = 151°
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° - 29° = 151°
If side x = 7cm, side y = 13cm, and side z = 5cm what is the perimeter of this triangle?
| 27cm | |
| 26cm | |
| 29cm | |
| 25cm |
The perimeter of a triangle is the sum of the lengths of its sides:
p = x + y + z
p = 7cm + 13cm + 5cm = 25cm