character builds slowly, but it can be torn down with incredible swiftness. faith baldwin today:...
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Character builds slowly, but it can be torn down with incredible swiftness.
Faith Baldwin
Today:Over Satellite WS10.3 InstructionPractice
GEOMETRY
Assignment:Satellite WS
Optimism is the faith that leads to achievement. Nothing can be done without hope and confidence.
Helen Keller
GEOMETRY
10.3 INSCRIBED ANGLES
Objectives:o Know and use properties of
inscribed angleso Know and use properties of
inscribed polygons
Vocabulary: inscribed angle, intercepted arc, circumscribe
central angleInscribed
angle
B
C
A
D
Measure of an Inscribed Angle is half the measure of its intercepted arc.
If mC = 84°, find
the mD.
T
Q
R
If two inscribed angles of a circle intercept the same arc, then the angles are congruent.
S
C D If T and S
both intercept QR, then T
S. If mT = 4x – 20 and mS = 6x – 42, find mQR.
A
C
D
B
44°
30°
180°
Y
W
X
If a right triangle is inscribed in a circle, then the hypotenuse is a diameter of the circle.
c i rc le . th eo fd ia m e te r a is A C iff a n g le rig h t a is B
In D, if AB = 6 and AC = 12, find the m1 and m2.
c i rc le . th eo fd ia m e te r a is A C iff a n g le rig h t a is B1
D
A
C
B
2
Assignment:10.3 p617 #11-18, 41-43
10.3 INSCRIBED ANGLES
Optimism is the faith that leads to achievement. Nothing can be done without hope and confidence.
Helen Keller
Character builds slowly, but it can be torn down with incredible swiftness.
Faith Baldwin
Today:Over Homework10.3 ContPractice
GEOMETRY
Assignment:10.3 p617 #11-18, 41-43
10.3 INSCRIBED ANGLES
Optimism is the faith that leads to achievement. Nothing can be done without hope and confidence.
Helen Keller
Take out a piece of notebook paper and label it CHAPTER 10 HOMEWORK QUIZ.Write down the date (2/21), then write out p 617 #18 (INCLUDING PICTURE!!!), your work and your answer.
HOMEWORK QUIZ
Describe in a sentence the relationship between the mA and mB.
B
C
DA
10.3 INSCRIBED ANGLES REVIEW
D
E
G
A quadrilateral can be inscribed in a circle iff the opposite angles are supplementary.
F
C
D, E, F and G lie on some circle C iff mD + mF = 180° and mE + mG = 180°.
x°y°
85°
Given FG = 100
and EG is adiameter, findthe value of each
variable.
y = 6
Find the value of each variable.
C B
A
19y°
11y°
8x°
x = 163x+4
°
Assignment:10.3 p616 #4-8,
20-21 and p620 #1-9
10.3 ARCS AND CHORDS
Optimism is the faith that leads to achievement. Nothing can be done without hope and confidence.
Helen Keller