[" QREMP If a ray stands on a line then the sum of the adjacemt angles so formed "],[qquad is180^(@).]

If a ray stands on a line; then the sum of the adjacent angles so formed is 180^(@)

Read the following two statements which are taken as axiom: (i) If two lines intersect each other , then the vertically opposite angles are not equal. (ii) If a ray stands on a line , then the sum of two adjacent angles, so formed is equal to 180^(@) . Is this system of axioms consistent ? Justify your answer.

If a ray stands on a line, then the sum of the two adjacent angles so formed is............... .

Fill in the blanks so as to make the following statements true: (i) If one angle of a linear pair is acute, then its other angle will be .......... (ii) A ray stands on a line, then the sum of the two adjacent angles so formed is .................. (iii) If the sum of two adjacent angles is 180^0, then the ............ arms of the two angles are opposite rays.

Fill in the blanks so as to make the following statements true: (i) If one angle of a linear pair is acute, then its other angle will be .......... (ii) A ray stands on a line, then the sum of the two adjacent angles so formed is .................. (iii) If the sum of two adjacent angles is 180^0 , then the ............ arms of the two angles are opposite rays.

If a ray stands on a line, then the sum of angles so formed is equal to 10^@ . Is this system of axioms consistent? Justify your answer.

Prove that the sum of the three angles of a triangle is 180^(@).

Prove that the sum of the three angles of a triangle is 180^0dot

If the sides of a triangle are produced in order, then the sum of the three exterior angles so formed is 90^(0)(b)180^(@)(c)270^(0)(d)360^(@)

Prove that the sum of two consecutive angles of a parallelogram is 180^(@).