A ladder of length is 4m is placed on wall of height 2m the distance between the base of wall and lower ebb of ladder is:

A ladder of length is 4m is placed on wall of height 2m the distance between the base of wall and lower ebb of ladder is:

Explanation

.A2+B2=C2

A2+22=42

A2+4=16

A2=16-4= 12

A2=12

A=3.5m