Posted by **THAMI** on Sunday, September 1, 2013 at 2:09pm.

A LADDER IS LEANING AGAINST THE WALL. IF THE LADDER REACHES A HEIGHT OF 12M UP THE WALL AND HAS ITS FOOT 5M AWAY FROM IT ,CULCULATE THE LENGTH OF THE LADDER?

- MATH -
**Serena**, Sunday, September 1, 2013 at 2:15pm
So for this you would use the Pythagorean Theorm.

The formula is a^2 + b^2 = c^2, where c is the hypotenuse of the triangle.

So if you know that the ladder reaches the height of 12m, that would be the hypotenuse in the triangle. 5m would be one of the legs in the triangle.

Therefore, calculate 5m^2 + ?^2 = 12m^2.

- MATH -
**Steve**, Sunday, September 1, 2013 at 7:07pm
actually, 12 is one of the legs. The ladder is the hypotenuse. Make a diagram to see why.

Think 5-12-13 Pythagorean triple

## Answer This Question

## Related Questions

- MATH - A LADDER IS LEANING AGAINST THE WALL. IF THE LADDER REACHES A HEIGHT OF ...
- Calculus - related rates: a ladder, 12 feet long, is leaning against a wall. if ...
- Maths - A ladder leans against a vertical wall of height 12m.if the foot of the ...
- maths - A ladder lies against a wall.the top of the ladder reaches 8feet above ...
- Mathematics - A ladder is standing against a wall.If a ladder reaches a height ...
- Analytical Geometry - A 10 foot long ladder is leaning against a vertical wall ...
- Math - the angle of elevation of a ladder leaning against a wall is 60° and the ...
- Maths - A ladder leaning against a wall makes an angle of 60 degree with the ...
- algebra - A ladder is resting against a wall. The top of the ladder touches the ...
- Calculus - a 5m ladder rests against a vertical wall. The top of the ladder ...

More Related Questions