Sally is a surveyor in the badlands in South Dakota. At point A on the south side of a deep canyon, she sights across to a fire tower on the north side of the canyon at point B. Then she moves a measured 500 feet along the south rim of the canyon to a point C on a line perpendicular to her original sight line AB. Setting up her transit again, she finds that her line of sight, CB, to the tower is 87 degrees. Correct to the nearest whole foot, how far is point C from the tower?
some other answers the class came up with...
4103
5737
7168
9554
2006-12-10 01:42:40 · 3 answers · asked by chris 2 in Science & Mathematics ➔ Mathematics
In your triangle ABC, Cos 87 = AC/CB = 500/CB ; from this you can calculate the measure of the hypotenuse. In this case it is 9554.
2006-12-10 01:58:24 · answer #1 · answered by saudipta c 5 · 1⤊ 0⤋
9554
2006-12-10 02:21:20 · answer #2 · answered by raj 1 · 1⤊ 0⤋
do your damn homework yourself.
2006-12-10 01:55:48 · answer #3 · answered by jhstha 4 · 0⤊ 3⤋