Question

4. A ladder of length 5 m is placed against a vertical
wall with its foot 1.8 m away from the base of the
wall. How far up the wall does the ladder reach?​

Answer 1

Answer:

Pythagoras theorem

Hypotenuse^2 = Leg1^2+leg2^2

5^2-1.8^2=x^2

25-3.24 =x^2

21.76=x^2

+sqrt%28x%5E2%29=sqrt%2821.76%09%29

x= 4.66 m