A ladder leans against a brick wall. The foot of the ladder is 5 feet from the wall. The ladder and the ground make an angle of 65º. What is the length of the ladder? Round to the nearest tenths.
Answers
Given : A ladder leans against a brick wall.
The foot of the ladder is 5 feet from the wall.
The ladder and the ground make an angle of 65º.
To Find : What is the length of the ladder
Round to the nearest tenths
Solution:
Cos angle = Distance of foot of ladder from wall / length of ladder
Distance of foot of ladder from wall = 5 feet
angle = 65°
=> Cos 65° = 5/length of ladder
=> 0.4226 = 5/ length of ladder
=> length of ladder = 11.83 c
= 11.8 feet
length of the ladder = 11.8 feet
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Answer:
Cos angle = Distance of foot of ladder from wall / length of ladder
Distance of foot of ladder from wall = 5 feet
angle = 65°
=> Cos 65° = 5/length of ladder
=> 0.4226 = 5/ length of ladder
=> length of ladder = 11.83 c
= 11.8 feet
length of the ladder = 11.8 feet