A.120° | B.108° | C.100° | D.135° |
A.36° | B.45° | C.60° | D.72° |
AC |
BD |
A.60° | B.70° | C.80° | D.90° |
A.AB=1.5,BC=6,DE=16,EF=12,∠A=∠D | ||
B.AB=4,BC=6,DF=24,DE=12,AC=8,EF=18 | ||
C.∠A=70°,∠B=35°,∠D=70°,∠F=115° | ||
D.∠C=∠F=90°,AB=15,AC=5,DE=5,EF=
|
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