35 degree angle?
2006-12-01 07:19:58 · 7 answers · asked by Gerald B 1 in Science & Mathematics ➔ Engineering
about a foot an a half
2006-12-01 07:23:01 · answer #1 · answered by topgunpilot22 4 · 0⤊ 0⤋
Lessee...
The hypotenuse (That's the board) is 7 ft. long, and the angle's 35 degrees.
Soh Cah Toa says that if you have the hypotenuse and the opposite side, you can use sine
sin35 (Opposite over Hypotenuse) = x/7 ft
sin 30 is 1/2, so sin35 is a bit more - .574, to be somewhat exact.
7 ft * .574 = 4.015, so the top would be 4.015 ft off the ground.
2006-12-01 15:26:26 · answer #2 · answered by skibbleyboo66 1 · 0⤊ 0⤋
SOH CAH TOA
Sin (angle) = Opposite/Hypotenuse
Cos (angle) = Adjacent/Hypotenuse
Tan (angle) = Opposite/Adjacent
so
Sin (35 degrees) = opposite length (the height) / Hypotenuse (the 7 foot board)
Ans : 7 sin (35degrees) = x
2006-12-01 15:25:34 · answer #3 · answered by Jared H 2 · 1⤊ 0⤋
7 sin 35 = 4ft
....
opposite/Hypotenuse=sin O
x/7=sin 35
multiply both sides by 7
x=7 sin 35
2006-12-01 15:27:21 · answer #4 · answered by Mark G 2 · 0⤊ 0⤋
Since I don't have a calculator, the answer is 7sin(35), I think
2006-12-01 15:23:29 · answer #5 · answered by darthfroehlious 2 · 2⤊ 0⤋
what size board... 2x4 is 4'1 5/8"
2006-12-01 16:02:22 · answer #6 · answered by smitty4626 3 · 0⤊ 0⤋
4.015 feet
2006-12-01 15:25:06 · answer #7 · answered by www.HaysEngineering.com 4 · 0⤊ 0⤋