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1Find x in the following figure :40c |
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Answer» x=100 degrees is the correct answer ∆ABC is an isosceles triangle.Therefore, AB = AC and <B = <CNow, In ∆ABC <A + <B + <C = 180° x + 40° + 40°= 180° [Given] x + 80° = 180° x = 180°- 80° x = 100° here the answer will be 100 AB=AC (Given)<B=<C (By theorem)40°=40°Now,In 🔼ABC<A+<B+<C=180°(Angle sum property of triangle)=x+40°+40°=180°=x+80°=180°=x=180°-80°=x=100° |
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