Question

This is hard please help it makes no sense

Answer 1

We will find the length of DE using trigonometric ratios. And the trigonometric ratio we will use here is

$\sf \tan( \theta) = \frac{opposite}{adjacent}$

• Opposite = 17 m
• Adjacent = DE
• θ = 51°

$\tt \tan(51°) = \frac{17}{x}$

$\tt \tan(51°) \times x = 17$

$\tt \: x = \frac{17}{ \tan(51°) }$

$\tt \: x≈13.766$

$\boxed{ \sf \: x≈13.8 \: (when \: rounded \: off)}$

Thus, Option C is the correct choice!!~

Answer 2

Answer:

lk12

Step-by-step explanation: