Question

1. A circus artist is climbing a 20 m long rope, which is
tightly stretched and tied from the top of a vertical
pole to the ground. Find the height of the pole, if
the angle made by the rope with the ground level is
30° (see Fig. 9.11).​

Answer 1

Answer:

Let the height of the pole be x m

then,

sin 30 = length of rope / height of pole.

sin 30 = 20 / x

1 / 2 = 20/x

thus ,

x = 40 m

height of the pole = 40 m

Answer 2

Answer:

10 meters

Step-by-step explanation:

See picture for explanation.

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