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What is the length of bc?

What is the length of bc?-example-1
User Georgery
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The length of BC is 15 units.

I used the Pythagorean theorem to find this. 8 is the length of the given leg, and 17 is the length of the hypotenuse:

8²+b²=17²
64+b²=289

Subtract 64 from both sides:
64+b²-64=289-64
b²=225

Take the square root of both sides:
√b²=√225
b=15
User LuisCien
by
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