Question

b.
A ladder is put against a wall at a height of 12m. Its foot is at a
distance of 9m from the foot of the wall. Find length of ladder.​

Answer 1

Answer:

length of ladder is 15m

Step-by-step explanation:

(height)^2=(9)^2 + (12)^2

=81+144=225

(height)^2=225

height=√225

=15m