如图6,为半圆的直径,平分,交半圆于点交于点,则的度数是____________.
如果Rt△ABC∽Rt△A′B′C′,∠C=∠C′=90°,AB=3,BC=2,A′B′=12,则A′C′=________.
已知△ABC∽△A′B′C′,A和A′,B和B′分别是对应点,若AB="5" cm,A′B′="8" cm,AC="4" cm,B′C′="6" cm,则△A′B′C′与△ABC的相似比为________,A′C′=________,BC=________.
如果△ABC和△A′B′C′的相似比等于1,则这两个三角形________.
如图,已知DE∥BC,△ADE∽△ABC,则=________=________.
如图,已知△ADE∽△ABC,且∠ADE=∠B,则对应角为________,对应边为________.