Q53 of 153 Page 148

Each question consists of two statements, namely, Assertion (A) and Reason (R). Choose the correct option.

Assertion (A)

Reason (R)

If the two angles of a triangle measure 50° and 70°, then its third angle is 60°.

The sum of the angles of a triangle is 180°.

Sum of triangle is = 180°

And 70 + 60 + 50 = 180°

The sides BC, BA and CA of ΔABC have been produced to D, E and F respectively, as shown in the given figure. Then, ∠B = ?

In the adjoining figure, y = ?

Each question consists of two statements, namely, Assertion (A) and Reason (R). Choose the correct option.

Assertion (A)	Reason (R)
If a ray stands on a line such that ∠ACD = ∠BCD, then ∠ACD = 90°.	If a ray stands on a line then ∠ACD + ∠BCD = 180°.

Each question consists of two statements, namely, Assertion (A) and Reason (R). Choose the correct option.

Assertion (A)	Reason (R)
If the side BC of a ΔABC is produced to D, then ∠ACD = ∠A + ∠B.	The sum of the angles of a triangle is 180°.

Assertion (A)	Reason (R)
If the two angles of a triangle measure 50° and 70°, then its third angle is 60°.	The sum of the angles of a triangle is 180°.

Each question consists of two statements, namely, Assertion (A) and Reason (R). Choose the correct option.Assertion (A)Reason (R)If the two angles of a triangle measure 50° and 70°, then its third angle is 60°.The sum of the angles of a triangle is 180°.