Respuesta :

bhadelsimron19

Answer:

Step-by-step explanation:

pythagoras theorem

a^2+b^2=c^2

21^2+b^2=29^2

441+b^2=841

b^2=841-441

b^2=400

b=[tex]\sqrt{400[/tex]

b=20

therefore the length of a missing side is 20.

Answer:

20

Step-by-step explanation:

Use Pythagorean theorem. A^2+B^2=C^2

29 is the hypotenuse.

21^2+x^2=29^2

x=20

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