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PLEASE help!! Only one question

PLEASE help!! Only one question
asked 199k views
3 votes
PLEASE help!! Only one question

PLEASE help!! Only one question-example-1
asked
User Dorothee
by
7.8k points

1 Answer

3 votes

Answer:

29

Explanation:

Pythagorean theorem is a^2+b^2=c^2. Then fill in the terms to a calculator 20^2+21^2=841. the square root of 841 is 29

answered
User Syclone
by
8.1k points
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