Q1 of 66 Page 91

In ancient India, the shapes of altars used for household rituals were

In ancient India, the shapes of altars used for household rituals were Squares and circles.


The geometry of the Vedic period originated with the construction of altars (or vedis) and fireplaces for performing Vedic rites. Square and circular altars were used for household rituals, while altars, whose shapes were combinations of rectangles, triangles and trapeziums, were required for public worship.

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5

(i) How many lines can be drawn to pass through a given points?

(ii) How many lines can be drawn to pass through two given points?


(iii) In how many points can the two lines at the most intersect?


(iv) If A, B,C are three collinear points , name all the line segments determined by them.

 6

Which of the following statements are true?

(i) A line segment has no definite length.


(ii) A ray has no end point.


(iii) A line has a definite length.


(iv) A line is the same as line .


(v) A ray is the same as ray .


(vi) Two distinct points always determine a unique line.


(vii) Three lines are concurrent if they have a common point.


(viii) Two distinct lines cannot be both parallel to the same line.


(ix) Two intersecting lines cannot be both parallel to the same line.


(x) Open half-line OA is the same thing as ray


(xi) Two lines may intersect in two points.


(xii) Two lines I and m are parallel only when they have no point in common.

 2

The number of interwoven isosceles triangles in Sriyantra is

 3

Thales belongs to the country