Euclid said in his great mathematical work, the Elements : "A Point is that which has no Parts or Magnitude." That kind of gets at the idea, but "no parts or magnitude" also sounds like a perfectly good definition of nothing. Points and lines were real to Euclid, even if points had "no parts or magnitude" and lines were "length without breadth."

In the adjoining figure, name : Three concurrent lines and their points of intersection.

Given figure, We know that, if a set of lines or curves intersect at the same point then they are called Concurrent Lines. In this figure, lines A B , E F and G H intersect at the point R . Hence, three concurrent lines and their points of intersection are A B ↔ , E F ↔ , G H ↔ , R respectively.

In the adjoining figure, name : Six Points

Given, A point is an exact location. A fine dot represents a point and it has no size. In the given figure, the points are A , B , C , D , P , Q , R , S , E , F , G , H , M , N . Hence, the six points in the given figure are A , B , C , D , E , F .

In the adjoining figure, name : Four lines

Given, A line has no beginning point or end point. In the given figure, the lines are A B , C D , P Q , R S . Hence, four Lines in the given figure are A B , C D , P Q , R S .

In the adjoining figure, name : Three rays

Given figure, We know that, a ray is a part of line with one end point and infinitely extends in other direction. So there are three rays namely R B → , R H → , R G → . Hence, the three rays are R B → , R H → , R G → .

EASY

Earn 100

What is a point?

Important Questions on Introduction to Euclid's Geometry

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Mathematics>Geometry>Introduction to Euclid's Geometry>Euclid's Definitions, Axioms and Postulates

In the adjoining figure, name :

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Three concurrent lines and their points of intersection.

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Mathematics>Geometry>Introduction to Euclid's Geometry>Euclid's Definitions, Axioms and Postulates

Two distinct points in a plane determine _______ line(s).

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Mathematics>Geometry>Introduction to Euclid's Geometry>Euclid's Definitions, Axioms and Postulates

In the adjoining figure, name :

Question Image

Six Points

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Mathematics>Geometry>Introduction to Euclid's Geometry>Euclid's Definitions, Axioms and Postulates

A line has a definite length.

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Mathematics>Geometry>Introduction to Euclid's Geometry>Euclid's Definitions, Axioms and Postulates

Fill in the blanks.
(

i

) Two lines in a plane not having any point common are called P lines.
(

i i

) The edges of a surface are Q .
(

i i i

) Two distinct planes can intersect at R points.
(

i v

) S planes can pass through two distinct points.
P Q R S
(A) Parallel lines Infinite infinite
(B) Parallel planes one one
(C) Perpendicular lines one zero
(D) Perpendicular planes infinite infinite

EASY

Mathematics>Geometry>Introduction to Euclid's Geometry>Euclid's Definitions, Axioms and Postulates

If a straight line falling on two straight lines makes the interior angles on the same side of it taken together less than two right angles, then the two straight lines, if produced indefinitely, meet on that side on which the sum of the angles is ______ two right angles.

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Mathematics>Geometry>Introduction to Euclid's Geometry>Euclid's Definitions, Axioms and Postulates

A line $\overset{\leftrightarrow}{A B}$ is the same as line $\overset{\leftrightarrow}{B A}$ .

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Mathematics>Geometry>Introduction to Euclid's Geometry>Euclid's Definitions, Axioms and Postulates

The side faces of a pyramid are

MEDIUM

Mathematics>Geometry>Introduction to Euclid's Geometry>Euclid's Definitions, Axioms and Postulates

State ‘T’ for true and ‘F’ for false:
(