Question

A guy wire connected to the top of a pole makes an angle of 30 with the ground. If the distance between the stick at the base of the wire and the base of the pole is 10 cm, How tall is the pole? How long is the wire?

Answer 1

Answer:

Let AB (=24m ) be guy wire attached to a vertical pole BC of height 18 m. To keep the wire taut let it fixed to stake at A Then ABC is a right triangle right angled at C

∴AB

2

=AC

2

+BC

2

so ∴24

2

=AC

2

+18

2

or AC

2

=576−324

or AC

2

=252

or AC=

252

=6

7

cm

therefore the stake may be placed at a distance of 6

7

m from the base of pole

Step-by-step explanation:

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