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Warm up Find the circumference of the circle with a sector area of 16 28.75
Warm up (again) Find the area of the circle given the arc length of 16 732.5
r Radius of a Sphere
If you cut a sphere right down the middle you would create two congruent halves called HEMISPHERES. You can think of the globe. The equator cuts the earth into the northern and southern hemisphere.
Look at the cross section formed when you cut a sphere in half. What shape is it? A circle!!! This is called the GREAT CIRCLE of the sphere.
Surface Area of a Sphere
8 in Surface Area of a Sphere (round to the nearest hundredths) SA = 256 π
10 cm Surface Area of a Sphere (round to the nearest hundredths) SA = 100 π
25 in The circumference of a great circle of a sphere is 25 inches. Find the surface area of the sphere. (Round to the nearest tenths.)
5 in Surface Area of a Sphere A spherical balloon has an initial radius of 5 in. When more air is added, the radius becomes 10 in. Explain how the S.A. changes as the radius changes. 10 in
? in Find the radius
? cm Find the diameter
Volume of a Sphere
2 cm Volume of a Sphere (round to the nearest hundredths)
10 cm Volume of a Sphere
5 in Volume of a Sphere A spherical balloon has an initial radius of 5 in. When more air is added, the radius becomes 10 in. Explain how the volume changes as the radius changes. 10 in
? cm Find the radius
? cm Find the diameter
Daily Check For each circle C, find the value of x. Assume that segments that appear to be tangent are. (4 pts each) C 8 x 12 K T.
12.6 Surface Area & Volume of Spheres
1.3 QUIZ Answers.
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Chapter 10 Review Bingo. DIRECTIONS Fill in the answers listed on the board anywhere on your Bingo card. You will not have a FREE SPACE.
Volume of Non-Polyhedron solids
Volume of Spheres Objective: 1) To find the volume of a sphere.
Surface Area and Volume of Spheres
TODAY IN GEOMETRY… Warm up: Writing equations of a circle Learning Target : 11.4 You will find the arc length and circumferences of circles Independent.
Surface Area of Cones and Spheres Cone – The circular counterpart of a pyramid. Every cone has one face that is its base. This base is a circular region.
Area of Circles and Sectors Lesson 7.4A M.3.G.1 Calculate probabilities arising in geometric contexts (Ex. Find the probability of hitting a particular.
Geometry November 13, 2013 Today’s Question: How do we find the volume of cylinders, prisms, cones, and pyramids? Standard: MMC9-12.G.GMD1 and 3.
VOLUME = the number of cubic units contained in its interior VOLUME has cubic units Cm 3, ft 3, units 3.
Geometry Jeopardy! Ch 1-6 Formulas & Definitions SA of Prisms & Cylinders SA of Cones & Pryamids Volume of Prisms & Cylinders Volume of Cones & Pyramids.
Chapter Surface Area and Volume of Spheres.
Q1 of 36 Solve for x. Round to the nearest hundredths. 20 x 16.
Chapter 13 Volume.
The area of the circle is about 227 m 2. COURSE 2 LESSON 8-4 Find the area of the circle to the nearest unit. = (8.5) 2 Substitute 8.5 for the radius.
Warm up: Solve for x 18 ◦ 1.) x 124 ◦ 70 ◦ x 2.) 3.) x 260 ◦ 20 ◦ 110 ◦ x 4.)
Chapter 10 Review Bingo.
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