Traditional Culture Encyclopedia - Photography and portraiture - Shenzhen rt photography activities

Shenzhen rt photography activities

Solution: As shown in the figure, the intersection point D is DE⊥AB in E,

∫∠C = 90,AC=6,BC=8,

∴AB=AC2+BC2=62+82= 10,

∫AD splitting∠ ∠CAB,

∴CD=DE,

∴S△ABC= 12AC? CD+ 12AB? DE= 12AC? BC,

That is 12×6? CD+ 12× 10? CD= 12×6×8,

Solution CD = 3.

So the answer is: 3.