If the angle between two radii of a circle is 110 degree
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Solution, According to the attached diagram, the angle between two radius or ∠AOB = 110°. Now, the angle between the radius and it's tangent is 90°. ... We know that the sum of the four internal angles of any four sided polygon is 360°.
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Answer: 解，根据附图，两个半径或∠AOB的夹角=110°。现在，半径和它的切线之间的角度是 90°。 ...我们知道任何四边形多边形的四个内角之和都是360°。
Explanation: Solution, According to the attached diagram, the angle between two radius or ∠AOB = 110°. Now, the angle between the radius and it's tangent is 90°. ... We know that the sum of the four internal angles of any four sided polygon is 360°.
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