In ΔPQR Measure of angle Q at is 90°. If sinP = 1213 and PQ = 1 cm. Then what is the value of cotR =?

Answer: Option A

Solution

Answer: Option A

Solution:

$$\begin{array}{rl}& 5\text{ unit}\to 1\text{cm}\\ & \text{1 unit}\to \frac{1}{5}\text{cm}\\ & \cot R=\frac{2.4}{1}=2.4\text{cm}\end{array}$$