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HELP! ASAP!HELP! Find the measure of angle B in isosceles triangle ABC. A) 40° B) 55° C) 65° D) 85°
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HELP! ASAP!HELP!

Find the measure of angle B in isosceles triangle ABC.
A) 40°
B) 55°
C) 65°
D) 85°

HELP! ASAP!HELP! Find the measure of angle B in isosceles triangle ABC. A) 40° B) 55° C-example-1
User Lucas Ross
by
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1 Answer

6 votes
C) 65

The lines mean that they are equal or same congruent whatever. Since the top angle is 50 we can subtract 50 from 180.

180 - 50 = 130

Now the other Angles are equal so divide 130 by 2 and you get 65.
User Algar
by
7.2k points
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