Problem

Harrison has a rectangular plank of wood that is 29 inches long. He creates a ramp by resting the plank against a wall with a height of 14 inches, as shown.
Using Pythagoras' theorem, work out the horizontal distance between the wall and the bottom of the ramp.
Give your answer in inches to 1 d.p.

Answer

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Answer

25.4

Steps

Step 1 :Use Pythagorean theorem: 292=142+x2

Step 2 :Solve for x: x=292142

Step 3 :Calculate x: x=25.39685019840059

Step 4 :Round x to 1 decimal place: x=25.4

Step 5 :25.4

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