In the figure14-23 MON is a straight line,If the angles a,β

来源：学生作业帮编辑：神马作文网作业帮分类：数学作业时间：2024/11/23 18:46:32

In the figure14-23 MON is a straight line,If the angles a,β and γ satisfy β：α=2：1,

and γ：β=3：1,then the angle β=_______.

再问：看不懂
再答：，γ：β=3：1，β：α=2：1（已知） ∴γ=3β，α=½β（等量转化） ∵∠AOB=180°（平角） ∴α+β+γ=180º 即½β+β+3β=180° ∴β=40°．故答案是40°．

In the figure14-23 MON is a straight line,If the angles a,β In the figure above,QRS is a straight line and line TR bisec in a straight line A line in the There is a line of peach trees on each side of the straight 请帮我连词成句the,he,line,is,a,on,straight,drawing,blackboard draw a line in the A plane is flying in a straight line,climbing steadily at a 1:A wheel with radius 1 m is rolled in a straight line throu Sam is walking in a straight line towards a lamp post which it is known that the sum of the interior angles of a regular GRE In the xy-plane,line k is a line that does not pass thro