Each question consists of two statements, namely, Assertion (A) and Reason (R). Choose the correct option. Assertion (A) Reason (R) If three angles of a quadrilateral are 130 o , 70 o , and 60 o , then the fourth angle is 100 o . The sum of all the angle of a quadrilateral is 360 o .

Question

Philoid · Accepted Answer

Let the fourth angle be x,

130^o + 70^o + 60° + x° = 360° (angle sum of quadrilateral)

x° = 360^o − (130^o + 70^o + 60^o)

x° = 100^o

Thus, it can be observed that reason and assertion both are true and the reason explains the assertion.

Therefore Option A is correct.

Assertion (A)	Reason (R)
If three angles of a quadrilateral are 130^o, 70^o, and 60^o, then the fourth angle is 100^o.	The sum of all the angle of a quadrilateral is 360^o.

Each question consists of two statements, namely, Assertion (A) and Reason (R). Choose the correct option.Assertion (A)Reason (R)If three angles of a quadrilateral are 130o, 70o, and 60o, then the fourth angle is 100o.The sum of all the angle of a quadrilateral is 360o.

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

Assertion (A)

Reason (R)

If three angles of a quadrilateral are 130^o, 70^o, and 60^o, then the fourth angle is 100^o.

The sum of all the angle of a quadrilateral is 360^o.