Q22 of 48 Page 46

‘Lines are parallel if they do not intersect’ is stated in the form of

Reason: ‘Line as parallel, if they do no intersect’ is the definition of parallel lines.

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20

Which of the following needs a proof?

 21

Euclid stated that all right angles are equal to each other in the form of

 1

Write whether the following statements are True or False? Justify your answer :

Euclidean geometry is valid only for curved surfaces.

 2

Write whether the following statements are True or False? Justify your answer :

The boundaries of the solids are curves.