The foot of a ladder is 6m from the base of an electric pole. The top of the ladder rest against the pole at a point 8m above the ground. How long is the la...
The foot of a ladder is 6m from the base of an electric pole. The top of the ladder rest against the pole at a point 8m above the ground. How long is the ladder?
Answer Details
To find the length of the ladder, we can use the Pythagorean theorem, which states that in a right triangle, the square of the hypotenuse (the longest side) is equal to the sum of the squares of the other two sides.
In this case, the ladder is the hypotenuse, and the distance from the foot of the ladder to the pole and the height of the pole where the ladder is resting form the other two sides of the right triangle. So we have:
Length of ladder^2 = (distance from foot of ladder to pole)^2 + (height of pole where ladder is resting)^2
Length of ladder^2 = 6^2 + 8^2
Length of ladder^2 = 36 + 64
Length of ladder^2 = 100
Length of ladder = √100 = 10
Therefore, the length of the ladder is 10 meters. Answer option C (10m) is correct.