Question

IN TRIANGLE ABC ANGLE BACK IS 120°, AB=AC FIND THE MEASURES OF ANGLE ABC
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Answer 1

Answer:

one of the angle is 120

as we know AB =AC

SO 120+X+X =180 (angle sum property of triangle)

120+2X =180

2X= 180-120=60

X=60/2= 30

AB=AC =30

BC= 120

hope it will help u...

120+

Answer 2

Answer:

Angle

Step-by-step explanation:

angle bac -120

ab=ac

=angle B&angle C are equal......(opposite sides are quangruent )

sum of m of angle of triangle is 180

let angle B=angle C= x

sum of angles180 = 120+x+x

180=2x+120

180-120=2x

60=2x

x=60/2

x=3o

measure of angle of triangle ABC are 120°,30°, 30°.