SOLUTION: Amber wants to see the village on the other side of a 9-foot wall. She can do this if she will place a 7-foot ladder such that the top of the ladder is 6 ft. high up the wall. a)

Algebra ->  Trigonometry-basics -> SOLUTION: Amber wants to see the village on the other side of a 9-foot wall. She can do this if she will place a 7-foot ladder such that the top of the ladder is 6 ft. high up the wall. a)       Log On


   

Question 1181845: Amber wants to see the village on the other side of a 9-foot wall. She can do this if she will place a 7-foot ladder such that the top of the ladder is 6 ft. high up the wall.
a) If she is to achieve this, how far from the wall should the foot of the ladder be?
b) What is the measure in degrees of the angle that the wall makes with the ladder?
Answer by ikleyn(52914) About Me  (Show Source):
You can put this solution on YOUR website!
.

(a)  how far = sqrt%287%5E2+-+6%5E2%29  feet.   Use your calculator.



(b)  cos(a) = 6%2F7.


     The angle "a" is  arccos%286%2F7%29.    Use your calculator and find the angle in degrees.