Objective: To find the surface area and volume of a sphere.

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Presentation transcript:

Objective: To find the surface area and volume of a sphere. Chapter 10 Lesson 7 Objective: To find the surface area and volume of a sphere.

Theorem 10-10 Surface Area of a Sphere Radius Surface Area Radius

Example 1: Finding Surface Area of a Sphere Find the surface area of a sphere with diameter 14 in.

Example 2: Finding Surface Area of a Sphere Find the surface area of the sphere. Round your answer to the nearest whole number. The radius is 8 in. 8 in.

Example 3: Real World Connection Geography Earth’s equator is about 24,902 miles long. Approximate the surface area of Earth by finding the surface area of a sphere with circumference 24,902 mi. Step 2: Find the SA. C=24,902 mi. Step 1: Find the radius The surface area of Earth is about 197,400,000 mi2

Theorem 10-11 Volume of a Sphere radius Volume Radius

Example 4: Finding Volume of a Sphere Find the volume to the nearest cubic inch of a sphere with diameter 60 in.

Example 5: Finding Volume of a Sphere Find the volume of the sphere. Round your answer to the nearest whole number. 2 ft.

Example 6: Using Volume to Find Surface Area The volume of a sphere is 4200 ft3. Find the surface area to the nearest tenth.

Example 7: Using Volume to Find Surface Area The volume of a sphere is 5000 ft3. Find the surface area to the nearest tenth.

Assignment Page 560-561 #1-20; 30