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This question please

This question please
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4 votes
This question please

This question please-example-1
asked
User Ray Hulha
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8.0k points

1 Answer

6 votes

19^2 + x^2 = 21^2

19^2 = 361

21^2= 441

361 + x^2 = 441

x^2 = 441-361 = 80

x = sqrt(80) = 8.944 round to nearest tenth = 8.9

answered
User Byeongin Yoon
by
7.9k points
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