问题
填空题
弦AB分圆为1:5两部分,则劣弧AB所对的圆心角等于______度.
答案
∵弦AB分圆为1:5两部分,
∴劣弧AB的度数等于360°÷6×1=60°,
∴劣弧AB所对的圆心角等于60度.
弦AB分圆为1:5两部分,则劣弧AB所对的圆心角等于______度.
∵弦AB分圆为1:5两部分,
∴劣弧AB的度数等于360°÷6×1=60°,
∴劣弧AB所对的圆心角等于60度.
图表选择。(共5小题,每小题2分) 小题1:The telephone message is written by_______.
A. Jane B. Lucy C. Lily 小题2:“ The Zoo” is _______.
小题3:If you only have thirteen dollars, you can buy ___with all the money.
C. a pair of socks and a hat 小题4:You can visit Ocean Museum _____.
小题5:How many trains are there from Boston to New York in the morning?
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