Question 5 of attached image
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Answer:
total degree of circle =360°
total degree of triangle =180°
equilateral triangle all sides equal
c=50°
A=50°
B=50°
O =a+b+c=180
=50+50+50=180
O=180-150
O=30
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1
Answer:
80°
Step-by-step explanation:
AC=BC, then triangle ABC is isosceles
angle A= 50°
from triangle ABC
angle sum property
angle C= 80°
by alternate linesegment theorem
x= angle C= 80°
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