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Earn +20 ptsQ: How large a ladder to reach 10.5 feet high ceiling?
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How many feet above the top of the building should the tip of the ladder reach?
20
The base of a ladder is 7 feet away from the wall The top of the ladder is 19 feet from the floor Find the length of the ladder to the nearest thousandth?
Using Pythagoras' theorem the length of the ladder is 20.248 feet
How far up a wall does a ladder reach that is 26 feet long and 10 feet from the base of a wall?
Regard the ladder as the hypotenuse and the distance from the wall as one leg of a right angled triangle. Then, 262 = 102 + H2 : where H is the height reached up the wall by the ladder. H2 = 676 - 100 = 576 : H = √576 = 24
A 15 foot ladder is leaning against a 30 foot wallthe bottom end of the ladder is 9 feet from the wallhow many feet above the ground does the ladder touch the wall?
12 feet.
How high on a wall does a 12-ft ladder reach when the base of the ladder is 3 ft fr?
Use Pythagoras' theorem: 122-32 = 135 and its square root gives the answer of 11.619 feet rounded to 3 decimal places
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