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Please help me on this problem !
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Please help me on this problem !

Please help me on this problem !-example-1
User Victory
by
7.5k points

1 Answer

4 votes

Answer:

9

Explanation:

it's an isosceles right ∆.

so (9√2)^2 = 81*2= 162 = 2s^2

let x=y=s

s^2 = 81

s = 9

User Gomathi
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