Homework Help: Trigonometry

Posted by Melissa on Tuesday, March 27, 2012 at 5:42pm.

A ladder that is 15 feet long is placed so that it reaches from level ground to the top of a vertical wall that is 13 feet high
A. Use the law of sines to find the angle that the ladder makes with the ground to the nearest hundredth
B. Is more than one position of the ladder possible? Explain your answer.

Trigonometry - Henry, Thursday, March 29, 2012 at 5:14pm
A rt triangle is formed:

hyp. = 15 Ft. = Length of ladder.
Ver. side = 13Ft.

A. sinA / 13 = sin90 / 15.
sinA = 13*sin90 / 15 = 60.07 Deg.

B. The bottom of the ladder can be moved closer to are farther from the
bottom of the wall. But the hor. and
ver. side should always be > 0 to keep
the rt triangle.
Trigonometry - Henry, Thursday, March 29, 2012 at 5:21pm
CORRECTION: sinA=13*sin90/15 = 0.8666.
A = 60.07 Deg.

Answer this Question

Related Questions

Trigonometry - A ladder leaning against a building makes a 40 degree angle with ...
Right triangle (tri) - ladder 13 feet long . if she set the base of the ladder ...
Right triangle (tri) - ladder 13 feet long . if she set the base of the ladder ...
martin Luther King High School - ladder 13 feet long . if she set the base of ...
Calculus - A ladder 41 feet long that was leaning against a vertical wall begins...
help quick!!! - a ladder leans against a awall.The top of the ladder is 8 feet ...
math - A ladder leans against a brick wall, The top of the ladder touches the ...
Math - julia needs to purchase a ladder that just reaches the top of a 16 foot ...
7th grade Ms. Sue help Pygorean Theoream asap quic - 3. A ladder is leaning ...
geometry - a ladder is 15 ft long and is leaning against the wall. the top of ...

For Further Reading

First Name:
School Subject:
Answer: