alleryStart learning →The value of $\tan 45^\circ$ is
A0
B$\dfrac{1}{2}$
C1
D$\sqrt{3}$
Answer & Solution
Correct answer: C. 1
1. At $45^\circ$ the opposite and adjacent sides are equal.
2. So $\tan 45^\circ = \dfrac{\text{opposite}}{\text{adjacent}} = 1$.
3. Hence $\tan 45^\circ = 1$.
_Source: Karnataka SSLC (KSEEB) Class 10 Mathematics, Ch11 'Introduction to Trigonometry', §11.2 (standard angles)_
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