dwking1oz3xzx dwking1oz3xzx

03-04-2018
Mathematics

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Can I receive some help on this paper please

Can I receive some help on this paper please class=

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luckypaw021 luckypaw021

03-04-2018

2a is 225,

20^2+b^2=25^2
400+b^2=625
625-400=225

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