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A ladder is 25 ft long. THe ladder needs to reach to a widow that is 24ft abocve the ground. HOw far away from the building should the bottom of the ladder be placed. O by the way this is a math problem

2007-03-08 12:51:35 · 8 answers · asked by gone 3 in Science & Mathematics Mathematics

8 answers

In order to do that you'll have to use the pythagorean theorm.

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left side is a, bottom is b, diagonal is c
a^2 + b^2 = c^2
a = 24, b = ?, c = 25

so plug in the numbers and solve.

By the way, never try to use a 25 ft ladder on a 24 ft height. The bottom will be so close to the wall that it will be unstable and you will fall back and break your neck.

2007-03-08 12:57:03 · answer #1 · answered by Anonymous · 0 0

the ladder will be the hypotenuse of a right triangle. the distance from the window to the ground is 1 of the legs so

25^2-24^2=x^2
625-576=x^2
x^2=49
x=7


the bottom of the ladder should be 7' from the wall.

2007-03-08 13:12:44 · answer #2 · answered by yupchagee 7 · 0 0

Pythagorean theorem

The ladder is the hypotenuse, so
a^2 + 24^2 = 25^2
a^2 = 625 - 576
a^2 = 49
a = 7

2007-03-08 12:56:51 · answer #3 · answered by novangelis 7 · 0 0

Think of it as a big right triangle. The height is 24...the hypoteneuse is 25.

A^2 + B^2 = C^2

24^2 + B^2 = 25^2

576 + B^2 = 625

B^2 = 49

B = 7

2007-03-08 12:56:29 · answer #4 · answered by Jason 3 · 1 0

STEP BY STEP GUIDE!
PLEASE READ
DRAW A PICTURE!
it helps
use the Pythagorean theorem
a^2+b^2=c^2
a and b stand for sides of the triangle
c stands for the hypotenuse
you are given one leg of the triangle right triangle (24ft)
the hypotenuse is 25ft
plug them in!
24^2+b^2=25^2
square the two numbers
24^2=576
25^2=625
576+b^2=625
subtract both sides by 576
b^2=49
take the square roots of both sides
b=7
7ft is your answer

2007-03-08 12:57:13 · answer #5 · answered by andresmdn44 2 · 1 1

I believe it is
a^2+b^2=c^2
so 25 is c= 25^2=625
then 24^2=576

625-576=49 square root of 49 is 7. So 7ft.

2007-03-08 12:58:07 · answer #6 · answered by RoxieC 5 · 0 0

it is simple application of Pythagoras's Theorem
hypotenuse is 25
one side is 24
the other one is x

x^2 + 24^2 = 25^2

Solve for x...

x^2 = 25^2 - 24^2 = 49

x = 7 feet

2007-03-08 12:54:47 · answer #7 · answered by Anonymous · 1 0

1 feet apart

2007-03-08 12:54:45 · answer #8 · answered by ? 6 · 0 3

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