Sphere. 1Fs 1Fs.

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Presentation transcript:

Sphere

1Fs 1Fs

Spheres: SA = 4  r 2 a hemisphere splits a sphere exactly in half The top part of a hemisphere is called a great circle. The top part of a hemisphere is called a great circle.

Example 1) Find the surface area of the sphere given the area of the great circle is in 2.

Example 3) Find the surface area of the hemisphere.

SolidFormula Volume of a Sphere V = (4/3)  r 3

7k 7k

4)A sphere has a diameter of 5”. Find its volume. Find its volume. Example

What was the inverse of squaring something?

Similarly, what do you think the inverse of cubing something (raising something to the 3rd power) will be?