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Untitled13701.notebook
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February 13, 2018
How do I determine
Measurable
characteristics of circles?
Geometry February 12, 2018
Warmup
ClassLab.com
Classwork from Friday
Equations of Circles
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7247 5412
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L = (arc/360 )(Circumference)
use 3.14 for pi
What is Arc Length of a circle?
How do I find Circumference of a circle?
Where is Arc Length of a circle?
What is the relationship between circumference and arc length?
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1. you must subtract 360137 because the 137o goes with the unshaded sector
2. Remember the Area formula of the
circle and you have to square the radius. 3. Area units are square so this problem should have cm2.
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How do I find the area of a circle?
How do I find the area of a sector?
What is Arc Length of a circle?
How do I find Circumference of a circle?
Where is Arc Length of a circle?
What is the relationship between circumference and arc length?
How are the formulas for Arc Length and Area of a Sector related?
You should be able to answer these questions:
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Length is like perimeter
Area is space contained
Area - units squared
Length - units (linear)
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Remember to use the correct units
Area in2 or in sq.
Arc Length in
Constant of Proportionality
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Deltamath.com - Segment Length and Area
IXL: S.7, U.3, U.4, U.2
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Equations of Circles
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