If a point is located above the xy-plane, then which coordinate(s) must be positive?

the y-coordinate
the z-coordinate
the x- and y-coordinates
the y- and z-coordinates

]supplementary angles are two angles that add up to . • complementary angles are two angles that add up to degrees. • adjacent angles share a and a • congruent angles have the measure. • an triangle has one angle that is greater than 90 degrees. • a triangle with angles 45°, 45°, and 90° would be a triangle