Question

# Suppose the area of the ΔABC is 10√3. Length of segments AC and AB be 5 and 8 respectively. Then the angle A is (are)  :45∘ or 135∘30∘ or 150∘90∘ 60∘ or 120∘

Solution

## The correct option is D 60∘ or 120∘Area of the triangle =12×8×5sinθ=10√3  ⇒sinθ=√32⇒θ=60∘ or 120∘

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