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How do you find the answer to number 30?

How do you find the answer to number 30?-example-1
User Kimmi
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2 Answers

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It is 4 because 4+4 is 8 and add 5 it gives u 13
User Rakesh Kasinathan
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You have to use a2 + b2= c2 formula then multiply the perimeter and then you have your answer
Hope I helped :) :)

User Randyka Yudhistira
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