Question

who length of ladder is needed to reach a 7feet along the wall when the based of the ladder is 4feet from the wall​

Answer 1

Step-by-step explanation:

Given, length of ladder = 7 feet (height)

length of base = 4 feet

According to pythagoras theorem,

a^2 + b^2 = c^2

7^2 + 4^2 = c^2

49 + 16 = c^2

65 = c^2

√65= c^2