Question

A ladder was placed against a wall such that it touches a point 4 m above the ground.
The distance et the foot of the ladder from the bottom of the ground was 3 m. Keeping
its foot at the same point Akshay turns the ladder to the opposite side so that it reached the window of his house the length of the ladder in metre is​

Answer 1

Answer:

The length of the ladder is 5m.

Step-by-step explanation:

Cause :

A wall stands perpendicularly on ground.

Therefore when the ladder was placed on the wall it forms a right angled triangle and the ladder as Hypotenuse.

Thus here the Pythagorus Rule is used.

Steps :

${4}^{2} + {3}^{2} = {x}^{2}$

$16 + 9 = {x}^{2}$

$25 = {x}^{2}$

$\sqrt{25} = \sqrt{ {x}^{2} }$

$\sqrt{ {5}^{2} } = \sqrt{ {x}^{2} }$

$\sqrt{5 \times 5} = \sqrt{x \times x}$

$5 = x$