Question

a circum artist is climbing a 20m 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:

Answer = 10

Step-by-step explanation:

AC = 20

BC = 30

so, the height of the pole = BC - AC

= 30 - 20

= 10 ans .

Answer 2

✧ Solution :-

• AC = 20m. (length of the rope)
• Let AB = h (height of the pole).
• $\bf \angle \: abc = 30°$( given)

$\bf \: ✯ Now, :- \\ \bf \frac{ab}{ac} = sin \: 30 \degree = \frac{1}{2} \\ \bf \implies \: \frac{h}{20} \: = \frac{1}{2} \\ \bf \implies \: h \: = 10m. \:\:☞\:\: ans.$