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Mathematics 7 Online
OpenStudy (anonymous):

In △PQR, QS is an altitude. Solve for x and y.

OpenStudy (anonymous):

OpenStudy (anonymous):

okay this is hard lol

OpenStudy (anonymous):

yes it is really hard

OpenStudy (ajprincess):

|dw:1340250866742:dw| For triangle PQR=> Using pythagoras theorem y^2+z^2=(25)^2 z^2=(25)^2-y^2 For triangle QSR=> x^2+5^2=z^2 x^2+5^2=25^2-y^2 x^2=25^2-5^2-y^2 For triangle PSQ=> 20^2+x^2=y^2 x^2=y^2-20^2-(1) 25^2-5^2-y^2=y^2-20^2 625-25=y^2+y^2-400 2y^2=600+400 solve for y. Then substitute the value of y in (1) to find x. Can u do?

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