Question 1154562
*[illustration ladder.png].

a) How long is the ladder?

cos 50 = 12/ladder length
ladder length =12/cos 50
=18.66868 ft

b) How high up the wall does the ladder reach?
sin 50 = wall height /18.66868
ladder reaches 14.30104 ft

c) What angle does the ladder make with the wall?

40 deg
d) Please - draw a diagram and show all calculations.
e) Explain whether any two angles in your diagram represent a cofunction and
prove your statement with values of sine and cosine.