A 12-foot ladder that is leaning against a wall makes a 75.5 degree angle with the level ground. Which of the following equations can be used to determine the height y, above the ground, in feet, that the ladder touches the wall

A. Sin 75.5 = 12/y

B. Cos 75.5 = y/12

C. Sin 75.5 = y/12

D. Cos 75.5 = 12/y

C. Sin 75,5 = y/12

Step-by-step explanation:

This angle can be calculated using the law of sine:

sin(angle)=opposite cathete/hypothenuse

sin(angle)=wall/ladder

In this exercise we want to calculate the height of the ladder, so the equation is changed afterwards.

sin(angle)=wall/ladder

sin(75,5°)=12ft/y

hi,

you half the rectangle that you ae asking about so then you would see the scale factor of 1/2 the one u have selected, the one on top is half.

hope this !