Question

if triangle abc if ab = ac and b = 70degree find a

Answer 1

Answer:

a=40degree

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Step-by-step explanation:

if ab=ac then the angle b will also equal to angle c(the opposite angles are equal if the opposite sides are equal)

then c=70degree

we know that,

a+b+c=180degree

a=180-(b+c)

a=180-140

a=40degree

Hope it will help you