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  • 24-05-2017
  • Mathematics
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How do I find the missing length if the triangle?

How do I find the missing length if the triangle class=

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klaudiamicek
klaudiamicek klaudiamicek
  • 24-05-2017
Use the pythagorean theorem which works for right triangles. Its a squared + b squared=c squared. c is 13 since that's the length of the side opposite of the right angle so its the hypotenuse which is c. 5 is a leg. Plug them in.
(5) squared + bsquared=(13) squared
Simplify.
25+bsquared=169
subtract 25 from both sides 
b squared equals 144
find square root of both sides
b=12

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