∴∠CAD=∠ADE
∫AD average score ∠BAC means ∠CAD=∠DAB.
∴∠ADE=∠DAB
∴AE=DE
Triangle ADB is a right triangle.
∴∠EAD and ∠ABC are complementary, ∠ADE and ∠EDB are complementary.
∴∠EBD=∠EDB
∴BE=DE
∴AE=BE
I hope I can help you, and I hope to adopt it! ! ! ! ! ! !