Ntriangle xyz, m∠z > m∠x m∠y. which must be true about △xyz?

m∠X + m∠Z < 90° 

m∠Y > 90° 

∠X and∠Y are complementary 

m∠X + m∠Y < 90°

Since the given is m<Z > m<X +m<Y and the sum of measure of angles of a triangle is equal 180 degrees so from this result that the last one choice need being true sure so m<X +m<Y < 90°

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