| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.16 |
| Score | 0% | 63% |
The dimensions of this cylinder are height (h) = 4 and radius (r) = 1. What is the surface area?
| 10π | |
| 80π | |
| 18π | |
| 132π |
The surface area of a cylinder is 2πr2 + 2πrh:
sa = 2πr2 + 2πrh
sa = 2π(12) + 2π(1 x 4)
sa = 2π(1) + 2π(4)
sa = (2 x 1)π + (2 x 4)π
sa = 2π + 8π
sa = 10π
The dimensions of this cube are height (h) = 9, length (l) = 8, and width (w) = 4. What is the volume?
| 216 | |
| 14 | |
| 288 | |
| 180 |
The volume of a cube is height x length x width:
v = h x l x w
v = 9 x 8 x 4
v = 288
Which of the following statements about a parallelogram is not true?
a parallelogram is a quadrilateral |
|
opposite sides and adjacent angles are equal |
|
the area of a parallelogram is base x height |
|
the perimeter of a parallelogram is the sum of the lengths of all sides |
A parallelogram is a quadrilateral with two sets of parallel sides. Opposite sides (a = c, b = d) and angles (red = red, blue = blue) are equal. The area of a parallelogram is base x height and the perimeter is the sum of the lengths of all sides (a + b + c + d).
The dimensions of this cylinder are height (h) = 6 and radius (r) = 9. What is the volume?
| 216π | |
| 200π | |
| 486π | |
| 343π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(92 x 6)
v = 486π
What is the circumference of a circle with a radius of 13?
| 4π | |
| 26π | |
| 18π | |
| 3π |
The formula for circumference is circle diameter x π. Circle diameter is 2 x radius:
c = πd
c = π(2 * r)
c = π(2 * 13)
c = 26π