How many faces, edges, and vertices does a cone have?(2 points)

faces, edges, vertices

2. What is the radius of a cone with a diameter of 12 inches?(1 point)
in

3. a right circular cone. Here are the key details:

Height of the cone: 6 cm

Slant height of the cone: 4 cm

Radius of the base: 2 cm
What is the length of the cone?

4. What is the radius of a cylinder with a diameter of 14 inches?(1 point)
in

5. Use the image to answer the question.An illustration shows a right circular cylinder with an axis measuring 5 centimeters and diameter measuring 10 centimeters.What is the height of the cylinder shown?(1 point)

5 answers

  1. A cone has:

    • Faces: 2 (1 circular base and 1 curved surface)
    • Edges: 1 (the edge around the base)
    • Vertices: 1 (the apex)

    So the answer is:

    • Faces: 2
    • Edges: 1
    • Vertices: 1
  2. The radius of a cone with a diameter of 12 inches is: \[ \text{Radius} = \frac{\text{Diameter}}{2} = \frac{12 \text{ in}}{2} = 6 \text{ in} \]

  3. To find the length of the cone, we can use the Pythagorean theorem, but here you have provided the height and slant height, which suggests there's an inconsistency, as the slant height should be longer than the height. However, based on the provided data, we can calculate the proper slant height length assuming a right circular cone.

We can find the slant height \( (l) \) using: \[ l = \sqrt{r^2 + h^2} \] where \( r \) is the radius (2 cm) and \( h \) is the height (6 cm).

So, \[ l = \sqrt{(2 \text{ cm})^2 + (6 \text{ cm})^2} = \sqrt{4 + 36} = \sqrt{40} \approx 6.32 \text{ cm} \]

The length of the cone generally refers to the height or slant height depending on context. Clarification may be required.

  1. The radius of a cylinder with a diameter of 14 inches is: \[ \text{Radius} = \frac{\text{Diameter}}{2} = \frac{14 \text{ in}}{2} = 7 \text{ in} \]

  2. The height of the cylinder shown is given by the axis, which measures 5 centimeters. Thus, the height of the cylinder is: \[ \text{Height} = 5 \text{ cm} \]

If there are any further clarifications needed or additional questions, feel free to ask!

3. 4

quick check

How many faces does a cone have?(1 point)
Responses

3
3

0
0

2
2

1

2. Use the image to answer the question.A cone shows a height marked as 12 and a diameter marked as 8, both indicated with perpendicular dotted lines. The slant height is marked as 10.What is the radius of the cone?
12
4
8
10

3. The point on a cone where two or more line segments meet is called the(1 point)
Responses

face.
face.

vertex.
vertex.

oblique.
oblique.

edge.

4. What is the radius of a cylinder with a diameter of 16 units?(1 point)
Responses

16 units
16 units

8 units
8 units

32 units
32 units

4 units

5. Use the image to answer the question.An illustration shows a right circular cylinder with the height of its side labeled h and the radius of the top surface labeled r.What type of cylinder is shown?(1 point)Responsescylindercylinderright circular coneright circular coneright circular cylinderright circular cylinderoblique circular cylinderoblique circular cylinderSkip to navigation

Here are the answers to your quick check questions:

  1. How many faces does a cone have?

    • Response: 2
    • Correct answer: A cone has 2 faces (1 circular base and 1 curved surface).
  2. What is the radius of the cone? (Given height marked as 12 and diameter marked as 8)

    • Responses: 12, 4, 8, 10
    • Correct answer: 4 (since the radius is half of the diameter, which is \( \frac{8}{2} = 4 \)).
  3. The point on a cone where two or more line segments meet is called the:

    • Response: vertex
    • Correct answer: vertex.
  4. What is the radius of a cylinder with a diameter of 16 units?

    • Responses: 16 units, 8 units, 32 units, 4 units
    • Correct answer: 8 units (since the radius is half of the diameter, which is \( \frac{16}{2} = 8 \)).
  5. What type of cylinder is shown?

    • Responses: right circular cylinder, oblique circular cylinder
    • If the cylinder is perfectly aligned with the vertical axis, the correct answer is: right circular cylinder.

If you have any more questions or need clarification on anything else, feel free to ask!

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