jodiexx97
jodiexx97
16-05-2018
Mathematics
contestada
can someone please help i am very stuck :
Respuesta :
Аноним
Аноним
16-05-2018
the answer is
the first one is x= 18.98
a^2+b^2=c^2
8 cm^2+17 cm^2= x^2
64+289=x^2
√x^2= √353
x=18.89
the second one is x= 18.7
a^2+b^2=c^2
7 m^2+ x^2= 20 m^2
49 m+x^2=400 m
-49 -49
√x^2=√352
x= 18.7
Hope this helps!
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