Question

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

Answer 1

Answer:

answer given in photo

Step-by-step explanation:

AB = 12m and AC= 13 m BC =?

Answer 2

Answer:

5 root over of 5

Step-by-step explanation:

H square = p square + b square => b square = h square - p square => b = root of the difference of h and p squares = root over of 13 square - 12 square = root over of 169-144= root over of 125 = 5 root over of five