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zloy xaker [14]

3 years ago

9

PLEASE HELP ASAP!!!!!!!!

2 answers:

lana66690 [7]3 years ago

8 0

A^2 + B^2 = C^2
21^2 + B^2 = 29^2
441 + B^2 = 841
-441 -441
B^2 = 400
√B^2 = √400
B = 20

riadik2000 [5.3K]3 years ago

6 0

29^2 - 21^2 = sqr(400) = <em>20.0</em>

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