Wednesday

August 27, 2014

August 27, 2014

Posted by **anonymous** on Sunday, May 27, 2012 at 4:35pm.

- trig -
**Henry**, Monday, May 28, 2012 at 8:03pmWe form a rt. triangle:

X = 6 meters = Hor.

Y = Ver. = Dist. from gnd to junction of wire and pole.

Z = Hyp. = Length of the wire.

A = Angle bet. gnd and wire.

B = Angle bet. pole and wire.

A + B = 90 Deg.

A = 3B.

3B + B = 90

B = 22.5 Deg.

A = 3B = 3*22.5 = 67.5 Deg.

Z*cosA = X

Z = X/cosA = 15.7 m.

tanA = Y/X = Y/6

Y = 6*tanA = 6*tan67.5 = 14.5 m.

**Related Questions**

math - An electric pole is supported to stand vertically on a level ground by a ...

math - An electric pole is supported to stand vertically on a level ground by a ...

Trig - A guy wire attached to the top of an electric pole makes a 70deg angle ...

Trig - A guy wire attached to the top of an electric pole makes a 700 angle with...

geometry - A guy wire is used to stabilize a utility pole. The wire is fastened ...

trig - A wind storm caused a 64 ft pole to lean due easwt at an angle of 63.8 ...

math (algebra) - An auto dealer wants to string a wire from the top of a pole to...

precal - A pole 12 meters tall is perpendicular to level ground. A taut wire ...

trig - A 52-foot wire running from the top of a tent pole to the ground makes an...

algebra - a piece of wire measuring 20 feet is attached to a telephone pole as a...