Question

in an isoscles triangle abc, ab = ac,
and angle a = 3 angle b. find angle c​

Answer 1

Answer:

equal sides makes equal angles

ab = ac

angle b = angle c

in triangle abc

a + b + c = 180⁰

3angle b + b + b =180⁰ (angle b = angle c)

5b = 180⁰

b = 36⁰

c = 36⁰

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