Mrs. O'Leary's cat is stuck in her backyard tree. A fireman positions a ladder against the tree branch and rescues the cat.?

Mrs. O'Leary's cat is stuck in her backyard tree. A fireman positions a ladder against the tree branch and rescues the cat. The ladder was extended to 22 feet, and made an angle of 62 degrees with the ground. What was the cat's vertical height in the tree.

Use picture please and include if it SOH, CAH, TOA in it!

1 Answer
Jun 8, 2018

#BC=sin(62^@)*22~~19.42#

Explanation:

A good idea is always to draw a sketch

enter image source here

The important thing to notice is the right angled triangle

We want to find the cats height, i.e. the length #color(blue)(BC# (Opposite side)

We know the angle #color(blue)(A=62^@# and the hypotenuse #color(blue)(AC=22#

So we need to use sine (SOH)

#sin(A)="Opposite"/"Hypotenuse"#

#=>"Opposite"=sin(A)*"Hypotenuse"#

Substituting the values

#BC=sin(62^@)*22~~19.42#