Question

A ladder is leaning against a wall. Its bottom is 9 m from the wall and its top touches the wall 12 m from the ground. How long is the ladder? (Need to draw the diagram) *​

Answer 1

Answer:

Length of the Ladder = 15m

Step-by-step explanation:

Given, Distance between the bottom of Ladder and  the wall = 9m

Top of the ladder touches the wall 12 m from the ground.

⇒Height of the wall = 12m

Now Length of the Ladder = $\sqrt{12^{2} + 9^{2} }$ $(Hypotenuse^{2} = Base^{2} + Altitude^{2})$

                                            =$\sqrt{144 + 81}$

                                            = $\sqrt{225}$

                                            = 15m

THANK U : )

Answer 2

Answer:

The length of the given ladder is 15m

Step-by-step explanation:

Used Concept:

Pythagoras theorem:

In a right angled triangle the square of hypotenuse is equal to sum of the squares of the remaining two sides.