The three angles of a quadrilateral are 80⁰,70⁰ and 120⁰. The fo

1.	The three angles of a quadrilateral are 80⁰,70⁰ and 120⁰. The fourth angle is (a) 110⁰ (b) 100⁰ (c) 90⁰ (d) 80⁰plz tell fast
Answer» ANSWER: Please mark me as the BRAINLIEST Step-by-step explanation: Sum of Angles in a Quadrilateral = 360° Let the fourth ANGLE be as x 80° + 70° + 120° + x° = 360° 270° + x° = 360° x° = 360° - 270° = 90° OPTION (C) 90°

The three angles of a quadrilateral are 80⁰,70⁰ and 120⁰. The fourth angle is (a) 110⁰ (b) 100⁰ (c) 90⁰ (d) 80⁰plz tell fast

Answer»

Please mark me as the BRAINLIEST

Step-by-step explanation:

Sum of Angles in a Quadrilateral = 360°

Let the fourth ANGLE be as x

80° + 70° + 120° + x° = 360°

270° + x° = 360°

x° = 360° - 270° = 90°