Question

ASSERTION (A) : IF TWO LINES AB AND CD INTERSECT AT O SUCH THAT ∠AOC = 40 ° , THEN ∠BOC = 140°.
REASON (R): IF TWO STRAIGHT LINES INTERSECT EACH OTHER THEN VERTICALLY OPPOSITE ANGLES ARE EQUAL

BOTH ASSERTION ( A ) AND REASON ( R ) ARE TRUE AND REASON ( R ) IS THE CORRECT EXPLANATION OF ASSERTION ( A)

BOTH ASSERTION ( A ) AND REASON ( R ) ARE TRUE BUT REASON ( R ) IS NOT A CORRECT EXPLANATION OF ASSERTION ( A)

ASSERTION ( A ) IS TRUE AND REASON ( R ) IS FALSE

ASSERTION ( A) IS FALSE AND REASON ( R ) IS TRUE

Answer 1

Answer:

Assertion: If two lines AB and CD intersect at O, such that ∠AOC = 40°, then ∠BOC = 140°.

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Reason: If two straight lines intersect each other, then vertically-opposite angles are equal.

(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.

(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.

(c) Assertion is true and Reason is false.

(d) Assertion is false and Reason is true.