如图,Rt△ABC中,∠ACB=90°,DE过点C且平行于AB,若∠BCE=35°,则∠A的度数为( )
A.35° |
B.45° |
C.55° |
D.65° |
如图,直线l1∥l2,∠1=55°,∠2=65°,则∠3为( )
A.50° |
B.55° |
C.60° |
D.65° |
如图,AB∥CD,EF⊥AB于E,EF交CD于F,已知∠2=30°,则∠1是( )
A.20° |
B.60° |
C.30° |
D.45° |
如图,∠A=35°,∠B=∠C=90°,则∠D的度数是( )
A.35° |
B.45° |
C.55° |
D.65° |
如图,将一块三角板叠放在直尺上,若∠1=20°,则∠2的度数为( )
A.40° |
B.60° |
C.70° |
D.80° |