Question
Answer: Option B
:
B
Sum of all angles in a triangle is 180∘.
∠BAC + ∠CAB + ∠CBA = 180∘
∠BAC + 30∘ +45∘ =180∘
∠BAC = 180∘−(30∘+45∘)=105∘.
The side opposite to the largest angle will be the longest.
Side opposite to ∠BAC = BC.
Hence, BC is the longest side.
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:
B
Sum of all angles in a triangle is 180∘.
∠BAC + ∠CAB + ∠CBA = 180∘
∠BAC + 30∘ +45∘ =180∘
∠BAC = 180∘−(30∘+45∘)=105∘.
The side opposite to the largest angle will be the longest.
Side opposite to ∠BAC = BC.
Hence, BC is the longest side.
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