The 3D figure is a cone with a height of 6 cm and a radius of 3 cm.
The 2D shapes that make up the cone include:
- A circle with a radius of 3 cm as the base of the cone
- A sector of a circle (a pie-shaped piece) that forms the lateral surface of the cone. The radius of this sector would also be 3 cm, but the circumference of the base circle would form the outer edge of the sector. The length of this curved portion can be calculated using the formula for the circumference of a circle, which is 2πr.
Unwrap the figure and tell what 2D shapes make up the 3D figure. Include dimensions of the shapes.
cone or 3D triangle
height of 6 cm and a radius of 3cm
1 answer