Posted by tareena on Saturday, May 17, 2008 at 3:51am.
a college football pennant is in the shape of an isosceles traingle . the base is 20 long the sides meet at an angle of 35 degrees.how long are the sides?

math  drwls, Saturday, May 17, 2008 at 6:06am
The two equal base angles are (1/2)(18035) = 72.5 degrees.
Consider the right triangle formed by the midpoint of the base, the tip of the pennant, and one long side. Let the long side length be x.
10/x = cos 72.5 = 0.301
Solve for x

math  tareena, Saturday, May 17, 2008 at 12:22pm
Two surveyors are on opposites sides of a swamp. To find the distance between them, one surveyor locates a point T that is 200 meters from her location at pont p. The angle of sight from T to the other surveyor's position, R, measure 72 degrees for angle RPT and 63 degrees for angle PTR. how far apart are the surveyors?
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