| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.40 |
| Score | 0% | 68% |
A quadrilateral is a shape with __________ sides.
5 |
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2 |
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4 |
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3 |
A quadrilateral is a shape with four sides. The perimeter of a quadrilateral is the sum of the lengths of its four sides.
The dimensions of this cylinder are height (h) = 4 and radius (r) = 4. What is the volume?
| 32π | |
| 648π | |
| 64π | |
| 192π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(42 x 4)
v = 64π
If the base of this triangle is 8 and the height is 1, what is the area?
| 84 | |
| 60 | |
| 42 | |
| 4 |
The area of a triangle is equal to ½ base x height:
a = ½bh
a = ½ x 8 x 1 = \( \frac{8}{2} \) = 4
If side a = 6, side b = 8, what is the length of the hypotenuse of this right triangle?
| \( \sqrt{85} \) | |
| \( \sqrt{13} \) | |
| \( \sqrt{106} \) | |
| 10 |
According to the Pythagorean theorem, the hypotenuse squared is equal to the sum of the two perpendicular sides squared:
c2 = a2 + b2
c2 = 62 + 82
c2 = 36 + 64
c2 = 100
c = \( \sqrt{100} \)
c = 10
If a = c = 7, b = d = 3, and the blue angle = 64°, what is the area of this parallelogram?
| 81 | |
| 18 | |
| 40 | |
| 21 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 7 x 3
a = 21