Question

A quadrilateral has three cute angle each measure 80 degree what is the middle of the fourth angle​

Answer 1

Answer:

60°

Step-by-step explanation:

Sum of all angles of a quadrilateral is 360°.

Three angles are of 80°.

Let the fourth angle be'x'.

80° + 80° + 80° + x = 360°

240° + x = 360°

x = 360° - 240°

x = 120°

Half of 'x' will be 60°.