12.3 Day 1 ­ Inscribes Angles.notebook
March 20, 2017
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12.3 Day 1 ­ Inscribes Angles.notebook
12.3 Day 1: Inscribed Angles
March 20, 2017
Date: 3/20
Inscribed Angles
Theorem 12­11: The measure of an inscribed angle is ________
the measure of its intercepted arc.
Corollary 1:
Two inscribed angles
that intersect the same
arc are congruent.
Corollary 2:
An angle inscribed in a
semicircle is a right angle.
Corollary 3:
The opposite angles
of a quad. inscribed
in a circle are suppl.
Theorem 12­12: The measure of an angle formed by a tangent
and a chord is half the measure of the intercepted arc.
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12.3 Day 1 ­ Inscribes Angles.notebook
March 20, 2017
Ex 1). What are the values of a and b?
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12.3 Day 1 ­ Inscribes Angles.notebook
March 20, 2017
Ex 2). What is the measure of each numbered angle?
a) b) 4
12.3 Day 1 ­ Inscribes Angles.notebook
March 20, 2017
Ex 3). Quadrilateral ABCD is inscribed in
tangent to
What is the
? What is
is
? What is
?
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12.3 Day 1 ­ Inscribes Angles.notebook
March 20, 2017
Ex 4). Find the value of each variable:
a)
b)
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12.3 Day 1 ­ Inscribes Angles.notebook
March 20, 2017
Ex 4). Find the value of each variable:
c)
d)
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12.3 Day 1 ­ Inscribes Angles.notebook
March 20, 2017
Homework:
pg. 825 #1 – 14
Circles Test ­ Thursday 3/23
Chapter 7 Binder Check this week
Passes collected starting Wednesday
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