Question

if AB=AC then find the value of x​

Answer 1

Answer:

x=65 degree

Step-by-step explanation:

since in the given triangle AB=AC

it is a isosceles triangle

therefore angle BCA = BAC

so angle ABC = 180 - 2x

since we know exterior angle is equal to sum of its interior opposite angles

angle ABC  + angle BAC = 115

so 180 - 2x + x = 115

therefore x = 65 degree

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