Question

50 points help asap!

Answer 1

Answer:

58 feet.

Step-by-step explanation

Since the angle given is across from the length we need to find and we are given the hypotenuse, we use sine.

Sin(46)=x/80 where x is the height of the triangle and 80 is the hypotenuse.

80sin(46)=x

x=57.55 or 58 feet.

Answer 2

• AB=Perpendicular=80ft
• Angle of elevation=$\theta$=46°

We need Base i e BC

$\\ \rm\Rrightarrow tan46=\dfrac{AB}{BC}$

$\\ \rm\Rrightarrow BC=\dfrac{AB}{tan46}$

$\\ \rm\Rrightarrow BC=\dfrac{80}{1}\approx 80ft$