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 rope be the hypotenus of the triangle

by trigno

Sin 30 = p/h

1/2 = p/20

20/2 = p

p = 10

so the height of the pole is 10 m

Step-by-step explanation:

Answer 2

Step-by-step explanation:

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