Question

If the ladder is inclined at an angle of 30° with the ground and it reaches at a height of 4m from the ground, then the length of the ladder is _________. ​

Answer 1

Answer:

Given,

          Angle made between the ladder and the ground=30°

          Height of the ladder from the ground=4m

Solving using trigonometry,

We know, sin30°=1/2.

Let the length of the ladder be x.

So, by this we can say that 4/x=1/2

⇒x=4×2

⇒x=8 m.

So, the length of the ladder is 8m.

Answer 2

I think u understand.....