Question

in triangle ABC, angle A=70 degree, AB=5.5cm ,AC=5.5cm then find angle ABCand angle BCA.
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Answer 1

Answer:

it's easy.....

Step-by-step explanation:

as we can see that ab=5.5 and ac=5.5cm , so ab=ac , hence it's a isosceles triangle ,so tha angle b will be equal to angle c (angle opposite to equal sides are equal)

let's assume angle b = x so by angle sum property of triangle

angle a + angle b + angle c =180

70+x+x =180 (angle b= c so angle c is also= x)

2x =180-70

x= 110/2

x= 55

so angle b= 55,c=55

;)