Question

how high up the wall is a 10m ladder if the foot of the ladder is 2m from the wall

Answer 1

Answer:

9.8 m

Step-by-step explanation:

Use Pythagoras theorem,

where the hypotenuse = 10 m

and the base is 2 m,

Therefore, the height of the wall (the perpendicular) can be found out.

hypotenuse ² = perpendicular ² + base ²

or perpendicular = √(hypotenuse²-base²)

Put the values and solve.