问题
填空题
Rt△ABC的三边长AB=5,BC=4,AC=3,Rt△A′B′C′的三边长A′B′=10,B′C′=8,A′C′=6,则Rt△ABC______Rt△A′B′C′.
答案
∵AB:BC:AC=5:4:3,A′B′:B′C′:A′C′=10:8:6=5:4:3;
∴AB:BC:AC=A′B′:B′C′:A′C′;
∴Rt△ABC∽Rt△A′B′C′.
Rt△ABC的三边长AB=5,BC=4,AC=3,Rt△A′B′C′的三边长A′B′=10,B′C′=8,A′C′=6,则Rt△ABC______Rt△A′B′C′.
∵AB:BC:AC=5:4:3,A′B′:B′C′:A′C′=10:8:6=5:4:3;
∴AB:BC:AC=A′B′:B′C′:A′C′;
∴Rt△ABC∽Rt△A′B′C′.