The document defines and describes several basic 3D shapes: - A cone has a circular base and a pointed vertex not in the same plane as the base, with the vertex directly above the center. It has a height, lateral surface, base, slant height, and right cones have the height meeting the base at its center. - A cylinder has circular ends of equal size and circular curved surfaces. It has a height. - A sphere is a perfectly round shape like a ball with only one curved face. It has a center, radius, diameter, and great circles which are cross-sections containing the center. A sphere also has a surface area, circumference, and volume. - A hemisphere is

1. Curved sides
 Nurjanah Afifatul M. 4101412071
 Prawita Ningrum 4101412074
 Septi Ratnasari 4101412082
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2. CCoonnee
KKeerruuccuutt
A three
dimensional
shape with a
circle at its base
and a pointed
vertex.

4. A cone has a circular base and a vertex that is not in the same plane as a
base.
In a right cone, the height meets the base at its center.
Height
Lateral Surface
Base
r
The vertex is directly
above the center of
the circle.
r
Slant Height
The height of a cone is the perpendicular distance between the vertex
and the base.
The slant height of a cone is the distance between the vertex and a point
on the base edge.

5. Cylinder
A three-dimensional
shape with circular
ends of equal size.

6. Part of cylinder
circular
surfaces
circular CCuurrvveedd s suurrffaaccee
surfaces
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7. A perfectly round
three-dimensional
shape, like a ball. It
has only one curved
face.

8. Sphere – The set of all points in space equidistant
from a given point.
Center
r
Radius – Is a segment that
has one endpoint the center &
the other endpoint on the
sphere.
Diameter – A segment
passing through the center
with both endpoints on the
sphere.

9. Great Circle – A cross-section of a
sphere that also contains the
center of the sphere.
Surface Area ( luas permukaan )
Circumference ( keliling )
volume
r

10. A three-dimensional
shape
that is half a
sphere.

11. TThhaannkkss