andrea's given triangle abc and told that a squared plus b squared equals c squared she draws right triangle rts with legs measuring and b and hypotenuse measuring acts which best describes were andrea should do in order to prove that triangle abc is a right triangle

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step-by-step explanation:

your question is incomplete, write all the numbers in the sequence that it tells you.  

step-by-step explanation:

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.