As shown in the figure, in △ ABC, the vertical bisector of AB intersects at D, de = 6, BD = 62, AE ⊥ BC at e, and the length of EC is obtained

Connecting with AD, we know that DF is vertical and bisecting ab {BD = ad, ∠ B = 22.5 °, ∠ C = 60 ° {BAC = 97.5 ° according to the properties of the external angle and the external angle of the triangle, ∠ ade = {B +} DAB = 45 ° AE ⊥ BC, so ∠ DAE = 45 ° {△ AED is isosceles triangle, according to the properties of isosceles triangle, de = AE = 6, ∵

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