angles in and out of the circle
DESCRIPTION
Angles in and out of the circle. O OUT. IN. What we know so far. Central angle = arc Angle ON the circle = ½ arc. Vertex is inside the circle. A. ARC. B. ANGLE. D. ARC. C. Looks like a PLUS sign!. Ex. 1 Find m 1. 93 °. A. B. 1. D. C. 113 °. Ex. 2 Find m QT. N. Q. - PowerPoint PPT PresentationTRANSCRIPT
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Angles in and out of the circle
• OOUT
IN
![Page 4: Angles in and out of the circle](https://reader035.vdocuments.net/reader035/viewer/2022062518/568147ae550346895db4efec/html5/thumbnails/4.jpg)
What we know so far
• Central angle = arc
• Angle ON the circle = ½ arc
![Page 5: Angles in and out of the circle](https://reader035.vdocuments.net/reader035/viewer/2022062518/568147ae550346895db4efec/html5/thumbnails/5.jpg)
Vertex is inside the circleA
B
CD
ANGLE = (ARC + ARC)
2
ANGLE
ARC
ARC
![Page 6: Angles in and out of the circle](https://reader035.vdocuments.net/reader035/viewer/2022062518/568147ae550346895db4efec/html5/thumbnails/6.jpg)
Ex. 1 Find m1.A
B
CD
1
93°
113°
![Page 7: Angles in and out of the circle](https://reader035.vdocuments.net/reader035/viewer/2022062518/568147ae550346895db4efec/html5/thumbnails/7.jpg)
Ex. 2 Find mQT.N
Q
TM
92º84º
![Page 8: Angles in and out of the circle](https://reader035.vdocuments.net/reader035/viewer/2022062518/568147ae550346895db4efec/html5/thumbnails/8.jpg)
Ex 3: Find x.40o
120o
xo
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Challenge:
110º
100º
55º
wº
xº
yºzº
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Vertex is outside the circle
A
B
C
D
ANGLE = (Large ARC Small ARC)
2
ANGLE
LA
RGE
AR
C
small
ARC
ANGLELA
RG
E
AR
C
sm
all A
RC
small A
RC
LARGE
ARC
AN
GL
E
Negative (-) temperatures outside…
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A
B
D
1
Ex. 5 Find m1.
65°
15°
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A
B
Ex. 6 Find mAB.
27°
70°
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1
Ex. 7 Find m1.26
0°