Test Series for Class 9 Math

Q 19. Choose the correct option:

(a.)

Both A and R are true and R is the correct explanation for A

(b.)

Both A and R are true but R is not the correct explanation for A

(c.)

A is true but R is false

(d.)

A is false but R is true

Assertion (A): The adjacent angles on a straight line are (5x - 6)° and 7(x + 6)° then the value of x is 12

Reason (R): Sum of adjacent angles on straight line is 180°

Answer. a

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Test Series for Class 9 Math - Ques 19 Ans