Download Holt McDougal Geometry - Nutley Public Schools

11-4 Spheres
Spheres
Section 11-4
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GeometryGeometry
Holt
11-4 Spheres
Warm Up
Find each measurement.
1. the radius of circle M if the diameter is 25 cm
2. the circumference of circle X if the radius is
42.5 in.
3. the area of circle T if the diameter is 26 ft
4. the circumference of circle N if the area is
625 cm2
Holt McDougal Geometry
11-4 Spheres
A sphere is the locus of points in space that are a
fixed distance from a given point called the center
of a sphere. A radius of a sphere connects the
center of the sphere to any point on the sphere. A
hemisphere is half of a sphere. A great circle
divides a sphere into two hemispheres
Holt McDougal Geometry
11-4 Spheres
Holt McDougal Geometry
11-4 Spheres
Find the volume of the sphere.
Give your answer in terms of .
Holt McDougal Geometry
11-4 Spheres
Find the diameter of a sphere with volume
36,000 cm3.
Holt McDougal Geometry
11-4 Spheres
Find the volume of the hemisphere.
Holt McDougal Geometry
11-4 Spheres
Find the radius of a sphere with volume 2304 ft3.
Holt McDougal Geometry
11-4 Spheres
A sporting goods store sells exercise balls in two sizes,
standard (22-in. diameter) and jumbo (34-in.
diameter). How many times as great is the volume of a
jumbo ball as the volume of a standard ball?
Holt McDougal Geometry
11-4 Spheres
A hummingbird eyeball has a diameter of
approximately 0.6 cm. How many times as great is
the volume of a human eyeball as the volume of a
hummingbird eyeball?
Holt McDougal Geometry
11-4 Spheres
Holt McDougal Geometry
11-4 Spheres
Find the surface area of a sphere with diameter
76 cm. Give your answers in terms of .
Holt McDougal Geometry
11-4 Spheres
Find the volume of a sphere with surface area
324 in2. Give your answers in terms of .
Holt McDougal Geometry
11-4 Spheres
Find the surface area of a
sphere with a great circle
that has an area of 49 mi2.
Holt McDougal Geometry
11-4 Spheres
Find the surface area of the sphere.
Holt McDougal Geometry
11-4 Spheres
The radius of the sphere is
multiplied by . Describe the
effect on the volume.
Holt McDougal Geometry
11-4 Spheres
The radius of the sphere is
divided by 3. Describe the
effect on the surface area.
Holt McDougal Geometry
11-4 Spheres
Find the surface area and
volume of the composite figure.
Give your answer in terms of .
Holt McDougal Geometry
11-4 Spheres
Find the surface area and
volume of the composite figure.
Holt McDougal Geometry
11-4 Spheres
Lesson Quiz: Part I
Find each measurement. Give your answers in
terms of .
1. the volume and surface area
of the sphere
2. the volume and surface area of a sphere with
great circle area 36 in2
3. the volume and surface area
of the hemisphere
Holt McDougal Geometry
11-4 Spheres
Lesson Quiz: Part II
4. A sphere has radius 4. If the radius is multiplied
by 5, describe what happens to the surface area.
5. Find the volume and surface area of the
composite figure. Give your answer in terms of .
Holt McDougal Geometry