As shown in the figure, square ABCD, M is a point on BC. Connect am, make the vertical bisector GH of am, intersect AB at point G, intersect CD at point h. given am = 10cm, find the length of GH

As shown in the figure, square ABCD, M is a point on BC. Connect am, make the vertical bisector GH of am, intersect AB at point G, intersect CD at point h. given am = 10cm, find the length of GH

If the line segment GH is translated down to BN, then BN = GH, BN ⊥ am, ∵ quadrilateral ABCD is a square, ∥ AB = BC, ∥ ABC = ∥ BCD = ∥ BEM = 90 °. ∥ BAM = 90 ° - ∥ AMB = ∥ CBN. ∥ RT △ ABM ≌ RT △ BCN