In a right-angled triangle ABC, if angle B = $90^\circ$ and AC = 10 cm, BC = 20 cm, then what is the value of $\tan A$?
A. $\dfrac{1}{2}$
B. $\dfrac{4}{3}$
C. $\dfrac{3}{5}$
D. $\dfrac{4}{5}$
Answer:A
In a right-angled triangle ABC, if angle B = $90^\circ$ and AC = 10 cm, BC = 20 cm, then what is the value of $\tan A$?
A. $\dfrac{1}{2}$ B. $\dfrac{4}{3}$ C. $\dfrac{3}{5}$ D. $\dfrac{4}{5}$