a boy saw a girl on house window at angle of elevation 60 degree in front of boy there was a path straight lead to house main door .the girl window is 60m above the ground so tell how long is the path which straight lead to main gate . P.S.who tells first i will give 10 points.....but tell,,,,,am waiting.....
2006-06-22 05:36:49 · 10 answers · asked by fun2sh 2 in Science & Mathematics ➔ Mathematics
34.68 meters
2006-06-22 05:42:10 · answer #1 · answered by cirestan 6 · 0⤊ 1⤋
The sides of a 30-60-90 triangle are always in a ratio of 1 : sqrt 3 : 2
In this case, having been given the length of the long leg, you need to calculate the length of the short leg
60 / sqrt 3 = 34.64 meters
2006-06-22 17:45:30 · answer #2 · answered by jimbob 6 · 0⤊ 0⤋
Use a 30-60-90 triangle. Answer is 20*(3^(1/2))m.
2006-06-22 12:42:12 · answer #3 · answered by vishalarul 2 · 0⤊ 0⤋
The easiest is to just take 60 m/tan(60 degrees) =
= 34.641
2006-06-22 13:11:21 · answer #4 · answered by User1 2 · 0⤊ 0⤋
tan(60) = (60/x)
x = 60/(tan(60))
x = 34.6410
Assuming that the main door is also the main gate, then he is about 34.64 feet from the main gate, however if the main gate is y ft from the main door, then
he is about (y + 34.64)ft from the main door.
2006-06-22 15:11:22 · answer #5 · answered by Sherman81 6 · 0⤊ 0⤋
The answer is 34.641m.(Use Tan30= x/60 and solve for x)
2006-06-22 12:48:36 · answer #6 · answered by collant 1 · 0⤊ 0⤋
just remember SOH CAH TOA (read so-kah-toe-a)
Sin=Opposite/Hypotnuse
Cosin=Adjacent/Hyptonuse
Tangent=Opposite/Adjacent
for this one, you would solve for cosin
cosin(60)=x/60
cosin(60)*60=x
solve for x
2006-06-22 12:42:38 · answer #7 · answered by Babumoshai 4 · 0⤊ 0⤋
34.7m. Assuming you don't account for the height of the boy, and some other details.
2006-06-22 12:40:52 · answer #8 · answered by Iridium190 5 · 0⤊ 0⤋
tangent(60)/60
2006-06-22 12:42:25 · answer #9 · answered by Nevermore 2 · 0⤊ 0⤋
Not enough information and question badly written.
2006-06-22 12:42:09 · answer #10 · answered by nuked25 2 · 0⤊ 0⤋