Pythagorean theorem:
a^2+b^2=c^2 (C^2 always is the hypotenuse)
21^2+b^2=29^2
441+b^2=841
841-441=400
square root of 400 is 20
Your answer is 20
Answer:
D inequality sign always open up to a smaller number
Step-by-step explanation:
Answer:
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Step-by-step explanation: