Question

if the ladder 10 metre long reaches a window 8m above the ground then find the distance of the foot of a ladder from the base of the wall​

Answer 1

Given: length of ladder=10m;

height of wall =8m;

to find: distance of the foot

so, right angle at B, we have triangle ABC. such that AC hypotenuse AB perpendicular and BC base... so,

by P.T we have;

BC^= AC^-AB^

BC^=100-64

BC^=36

BC=6M