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I really need help with this question please and thank you .
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I really need help with this question please and thank you .

I really need help with this question please and thank you .-example-1
User Domskey
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1 Answer

5 votes
Answer:


Explanation:
using pythagorean theorem for a right triangle. a²+b²=c²
a²+b²=c²
20²+21²=?² step 1
√(20²+21²)=? step 2
√841 =?
29=? step 3
User Ray Garner
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7.5k points
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