Question

three
The
angle of a quadrilateral are :80°
90° 117° its fourth
angle
is.​

Answer 1

Answer:

73 degrees

Step-by-step explanation:

We know that the sum of four angles of a quadrilateral is 360 degree.

It means angle 1+2+3+4=360 degree

80+90+117+ Angle 4=360

287 + Angle 4 = 360

Angle 4 =360-287

Angle 4 = 73 degree. . . . Ans.

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Answer 2

Answer:

Step-by-step explanation:

1. sum of angles of quadrilateral is 360°
2. so, fourth angle= 360°-(80°+90°+117°)
3. fourth angle= 360°-287°
4. answer:-73°