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Can someone help me identify these things this is geometry

Can someone help me identify these things this is geometry-example-1
User DamiToma
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1 Answer

3 votes

(a)

The rays are opposite if angle between the two rays in 180 degree. So ray AB and ray CB is a pair of opposite ray.

(b)

When two line intersect each other then angle lies on opposite side od the intersecting points are termed as vertical angles. So a pair of vertical angle is angle ABD and angle mBC.

(c)

The plane can be named by three points lying on the plane. So other name of plane P is EBC.

(d)

The colinear points always lies in a striaght line. So point A, point B and point C are collinear points.

(e)

The angles whose sum is equal to 180 degree are called linear pair of angle. So angle ABD and angle CBD are linear pair of angles.

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