geometry mr. bower bowerpower.net. what is a cone? when you spin a right triangle (using one of the...
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![Page 1: Geometry Mr. Bower BowerPower.net. What is a cone? When you spin a right triangle (using one of the legs as an axis), you get a cone](https://reader036.vdocuments.us/reader036/viewer/2022062519/5697c00a1a28abf838cc7b6f/html5/thumbnails/1.jpg)
Geometry
Mr. Bower
BowerPower.net
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What is a cone? When you spin a
right triangle (using one of the legs as an axis), you get a cone
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Cones vs. Pyramids How are cones and
pyramids similar?
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Cones vs. Pyramids How are cones and
pyramids similar?
How are cones and pyramids different?
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Parts of a cone The apex is the
point at the top of the cone
APEX
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Parts of a cone The base is the
circle at the bottom (or top, if you’re eating ice cream!) of the cone
The radius of that circle is called r.
BASE
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Parts of a cone The perpendicular
distance from the circular base to the apex is the height, which we call h.
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Parts of a cone The slant height,
which we call l, is the distance from the apex to a point on the circle.
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Right triangle in a cone
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Cone – Lateral Area
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Cone – Surface Area
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Cone – Volume
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Cone – Example A cone has a height
of 8 cm and a slant height of 10 cm.
Find the cone’s…Lateral AreaSurface AreaVolume
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Cone – Example – How to start A cone has a height
of 8 cm and a slant height of 10 cm.
Let’s start by making sure we know
h, r, and l.
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Cone – Example – How to start A cone has a height
of 8 cm and a slant height of 10 cm.
h = 8 and l = 10 We need to
calculate r.
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Cone – Example – How to start
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Cone – Example – How to start
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Cone – Example – How to start
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Cone – Example – How to start
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Cone – Example – How to start
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Cone – Example – Lateral Area
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Cone – Example – Lateral Area
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Cone – Example – Lateral Area
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Cone – Example – Surface Area
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Cone – Example – Surface Area
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Cone – Example – Surface Area
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Cone – Example – Surface Area
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Cone – Example – Volume
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Cone – Example – Volume
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Cone – Example – Volume
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Cone – Example – Volume
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Cone – Summary
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BowerPower.net