Question

1. find tan d.

Explanation:

Step1: Recall tangent definition

For angle $D$, $\tan D = \frac{\text{opposite side}}{\text{adjacent side}}$

Step2: Identify sides for $\angle D$

Opposite side to $\angle D$ is $EF = 3$ cm, adjacent side is $DE = 4$ cm.

Step3: Calculate $\tan D$

$\tan D = \frac{3}{4}$

Answer:

$\frac{3}{4}$ (corresponding to the option $\boldsymbol{\frac{3}{4}}$)