Math, asked by mohan7398, 1 year ago

in an isosceles triangle ABC, AB=BC, A=80deegri.Find the value of Angle B and C

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Answered by Amber2018

Since it is an isosceles triangle.

The adjacent angles of unequal side would be equal.[property 1]

Given that A = 80 then B = 80

Sum of all the angles of a triangle = 180 [property 2]

A+B+C=180

80+80+C=180

160+C=180

C=20

Answer: A=B=80 and C=20

Amber2018: Sorry didn't see the picture before.
Angle A = 80, then B+C = 180-80 =100
B+C=100
B=C=50
Ans: A= 80, B=C=50

Answered by nandana000

here u go buddy.....

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nandana000: is this answer correct???

mohan7398: no

nandana000: sry

Amber2018: Hi Nandana, well try but check this line in your working out:
2x=180-80=162 {Wrong calculation}

nandana000: oops sorry

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