Question

Question 4 2 pts A fireman leaned a 36-foot ladder against a building. If he placed the ladder 12 feet from the base of the building, what angle is formed between the ladder and the ground? 0 78.8 Degrees 70.5 Degrees O 77.2 Degrees O 80.4 Degrees O 75.5 Degrees « Previous

Answer 1

x is the ladder ,x =36

y is the distance between ladder and wall y=12

z is the wall

we have in this triangle , only the hypotenuse(x) and the adjacent side

so,'

`\cos \theta=(y)/(x)=(12)/(36)=0.33`
`\theta=\cos ^(-1)(0.33)`
`\theta=70\circ(approximately)`