In ΔABC,if∠A=40o and ∠B=80o the find largest side of triangle.
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Solution
∠A=40∘, ∠B=80∘ Sum of angles of triangle = 180 ∠A+∠B+∠C=180 40+80+∠C=180 ∠C=60∘ In a triangle the largest side is opposite to the largest angle. Since, ∠B is the largest angle. hence, AC is the largest side. And the order will be, BC<AB<AC