1 |
2 |
A.4
| B.10 | C.8 | D.6 |
1 |
2 |
A.60° | B.120° | C.60°或120° | D.30°或150° |
A.78° | B.39° | C.156° | D.39°或141° |
A.相等的弦所对的弧相等 |
B.相等的圆心角所对的弧相等 |
C.在同一个圆中相等的弧所对的弦相等 |
D.相等的弦所对的圆心角相等 |
A.长度相等的两条弧是等弧 |
B.同一条弦所对的两条弧一定是等弧 |
C.相等的圆心角所对的弧相等 |
D.等弧所对的圆心角相等 |
© 2017-2019 超级试练试题库,All Rights Reserved.