Question

a ladder 17m long reaches a window on a well, which is 8m above the ground, on one side to the street. find the distance of the foot of the ladder from the wall.​

Answer 1

Length of a ladder = 17m

Distance from ground to window = 8m

Distance from the foot of the ladder and the wall = ?

By Pythagoras theorem

=(17)2 + (x)2 = (8)2

=289 + (x)2 = 64

=(x)2 = 289-64

=(x)2 = 225

=x = square root of 225

x=15

so, distance from the foot of the ladder and the wall is 15m.

Hope this helps you and please add my answer as brainliest answer.

Answer 2

Answer:

Find the first distance :

a² + b² = c²

a² + 8² = 17²

a² = 17² - 8²

a² = 225

a = √225

a = 15 m

Find the second distance :

a² + b² = c²

a² + 15² = 17²

a² = 17² - 15²

a² = 64

a = √64

a = 8 m

Find the width of the street:

Width = 15 + 8 = 23 m