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nikdorinn [45]
3 years ago
6

A 20-foot ladder is placed 12 feet from the wall. How high up the wall will the ladder reach?

Mathematics
2 answers:
valina [46]3 years ago
8 0
Use the Pythagorean theorem

<span>the hypotenuse is the ladder which is 20 ft and the base is 12 ft thus </span>

<span>a^2 + b^2 = c^2 </span>

<span>a^2 + 144 = 400 </span>
<span>a^2 = 256 </span>
<span>a = 16 </span>

<span>so its 16 ft</span><span />
Mazyrski [523]3 years ago
4 0
This is pretty easy just use the pythagorean theorem of a^2+b^2=c^2

20 is the hypotenuse
12 is the base
12^2+b^2=20^2
144+b^2=400
b^2=256
b=16

the ladder will reach 16 feet up the wall
hope this helps! :)
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