In triangle abc,if ab=ac and angleb=65, find angle c and angle a.
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Since AB=AC,it's an isosceles triangle.Thus the angles corresponding to the equal sides are also equal.
=>∠c=65°
Since sum of angles in a triangle is 180°,
∠a+∠b+∠c=180°
=>∠a=180°-130°=50°
=>∠c=65°
Since sum of angles in a triangle is 180°,
∠a+∠b+∠c=180°
=>∠a=180°-130°=50°
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