Question

A ladder is placed against a vertical tower.If the ladder makes an angle of 60^(@) with the ground and reaches up to a height of 20m of the tower then find the length of the ladder.​

Answer 1

Answer:

40$\sqrt3$/3 m

Explanation:

let AB be the toweror altitude

AC as the hypotenuse

BC as the ground or the base

angle C= 60 and angle B= 90

so in triangle ABC ,

sin 60=AB/AC

$\sqrt 3$ /2=20/AC

AC=20*2/$\sqrt3$

AC=40/$\sqrt3$

AC=40$\sqrt3$/3 m