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What is the value of $$c^{2} $$ in the given figure, where the radius of the circle is ‘a’ unit.
$$c^{2} = a^{2} + b^{2} - 2ab cos θ$$
$$c^{2} = a^{2} + b^{2} - 2ab sin θ$$
$$c^{2} = a^{2} - b^{2} + 2ab cos θ$$
None of these
Applying the cosine rule , we get $$c^{2} = a^{2} + b^{2} - 2ab cos θ$$
Hence, option A is the correct answer.
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