Find the height of a tree with angles 17˚ and 15˚. The angles are seperated by 31.4 feet.
Tree
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|_____17˚_| 31.4 ft |___15˚
2006-12-19 15:25:39 · 4 answers · asked by thomasgraham880 1 in Science & Mathematics ➔ Mathematics
You have two unknowns: the height of the tree (call it x) and the distance from the base of the tree to the 17-degree position.
So tan 17 deg = y / x
And tan 15 deg = y / (x + 31.4)
If you fill in the values for tan 17 and tan 15, you'll have two equations in two unknowns (x and y).
At that point ......................................... DYOH!
2006-12-19 15:31:45 · answer #1 · answered by actuator 5 · 1⤊ 0⤋
Well, in keeping with the them of the other answers already posted, you'll know your close if you answer is between 65 and 70'.
Good luck
2006-12-19 15:38:30 · answer #2 · answered by bkc99xx 6 · 0⤊ 0⤋
hey do yo own homework eh...
2006-12-19 15:27:32 · answer #3 · answered by Anonymous · 0⤊ 1⤋
6'5"
2006-12-19 15:26:57 · answer #4 · answered by Anonymous · 1⤊ 0⤋