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 lies against a wall.the top of the ladder reaches 8feet above ...
- Analytical Geometry - A 10 foot long ladder is leaning against a vertical wall ...
- 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 ...
- Calculus - A 12-ft ladder is leaning against a vertical wall when Jack begins ...
- mathematic - A ladder 10 meter long is leaning against a wall. If the top of ...
- Calculus - Suppose a ladder of length 36 feet rests against a wall, and we pull ...
- Algebra 1 - A ladder is resting against a wall. The top of the ladder touches ...