A ramp at the loading dock of an automobile manufacturing plant makes a 13-degree angle with the ground. The bottom end of the ramp is 25 meters from the building. What is the length of the ramp to the nearest meter?
2006-09-26 12:30:28 · 6 answers · asked by [ashley] 1 in Education & Reference ➔ Other - Education
Suggest removing the ramp and modifying the building so no ramp is needed
2006-09-26 12:33:19 · answer #1 · answered by wolfwi4 2 · 0⤊ 0⤋
I hate the way they word these questions. It sounds like a trick question to me. If they are saying that the ramp is up against the dock and the bottom of the ramp is 25 meters from the building then the ramp is 25 meters long. Okay - I'm not that good at figuring out what they are asking for.
2006-09-26 19:33:13 · answer #2 · answered by ? 6 · 0⤊ 0⤋
The cosine of the 13 degree angle is the adjacent side divided by the hypotenuse. The hypotenuse is the ramp, the adjacent side is the ground. So 25/h = cosine 13. Look up cosine 13 in a table or use a calculator.
Then h = 25/(cos 13)
2006-09-26 19:34:51 · answer #3 · answered by Jim H 3 · 0⤊ 0⤋
25/cos13 = 25.657 meters or close to 26 meters
2006-09-26 19:35:46 · answer #4 · answered by Dennis K 4 · 0⤊ 0⤋
OMG, I graduated high school in 1984 ... don't remember a thing!
2006-09-26 19:32:40 · answer #5 · answered by lesbiandyke 3 · 0⤊ 0⤋
Use the pythagorean theorem.
2006-09-26 19:34:45 · answer #6 · answered by Anonymous · 0⤊ 0⤋