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Mathematics 18 Online
OpenStudy (anonymous):

i need some help please

OpenStudy (anonymous):

hartnn (hartnn):

do you know pythagoras theorem ?

hartnn (hartnn):

since QRST is rectangle, angle S is 90 degrees so, triangle RST is right triangle. apply the pythagoras theorem in that triangle

OpenStudy (anonymous):

@hartnn could you please xplain?

hartnn (hartnn):

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