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08-02-2018
Mathematics

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Can some pls help me with these two questions plss

Can some pls help me with these two questions plss class=

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08-02-2018

19. a^2+b^2=c^2
3^2+4^2=c^2
25=c^2
5=c
RS is 5 units

20. 3.14*6^2*10
3.14*36*10=1130.4

volume is 1130.4

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