Question

Right Angle Trigonometry

Answer 1

Answer:

Step-by-step explanation:

BC/220=sin 60

BC=220 sin 60=220×√3/2=110√3≈190.5 ft

Answer 2

Answer:

190.5 ft

Step-by-step explanation:

For the 60-deg angle, BC is the opposite leg. AB is the hypotenuse.

The trig ratio that relates the opposite leg to the hypotenuse is the sine ratio.

$\sin A = \dfrac{opp}{hyp}$

$\sin 60^\circ = \dfrac{BC}{220}$

$BC = 220 \sin 60^\circ$

$BC = 190.5$