Flying a KiteDate: 5/23/96 at 19:50:29 From: Duvall Subject: Angle of elevation of a kite A boy flying a kite is standing 30 ft from a point directly under the kite. If the string to the kite is 50 ft. long, find the angle of elevation of the kite. What is the angle of elevation of the sun when a tree 6.25 m tall casts a shadow 10.1 m long? Date: 5/28/96 at 15:53:41 From: Doctor Ethan Subject: Re: Angle of elevation of a kite Hello, First a picture. & <-Kite &&& /&| / | / | 50ft/ | / | / | / Adeg. | You------point 30ft Okay Now we want the values for A deg. Since in a right triangle the cosine of an angle is the ratio of the adjacent side over the hypotenuse, cos (A) = 30/50 = 3/5 Now just use a calculator to find A. This method should help you with your other question. Good luck. -Doctor Ethan, The Math Forum Check out our web site! http://mathforum.org/dr.math/ |
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