Question

A 13 m long ladder when set against the wall of a house reaches a height of 12 m. Howis the foot of the ladder from the wall?​

Answer 1

Step-by-step explanation:

Base=Distance between wall and ladder =X

Height = ladder set against the wall of house reaches =12m

Hypotenuse = length of ladder = 13m

By Pythagoras theorem

Hypotenuse Sq = Base Sq + Height Sq

13sq= base Sq = 12sq

base Sq= 13sq - 12sq

= 169 - 144

base sq= 25

base. =

$\sqrt{25}$

5

Distance between the wall and ladder = 5m