Question

help me
I am stuck in this

Answer 1

Answer:

length of ladder is 5²+ 12² =✓( 25+144)= √169=13

property is called Pythogoras theorm , which says that length of the hypotenuse is square root of the sums of the squares of the other two sides.

suppose if hypotenuse is AC, and other sides are AB and BC

basically AC² = AB² + BC²

longest side of ∆ABC us AC which is also the hypotenuse of ABC.

As wall is perpendicular angle ABC = 90°.