Three angles of a quadrilateral measure 68° , 75° and 108° resp. Find the measure of the fourth angle.
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Answer:
109°
Step-by-step explanation:
68+75+108+x=360
251+x=360
x=360-251
x=109
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Given :
⬤ Three Angles of Quadrilateral are 68° , 75° and 108° .
To Find :
⬤ Measure of Fourth Angle of Quadrilateral .
Solution :
- First Angle = 68° .
- Second Angle = 75° .
- Third Angle = 108° .
Let :
- Fourth Angle be x .
As we know that , Sum of all Angles of Quadrilateral is 360 degree . Hence ,
251 + x = 360
x = 360 - 251
x = 109
Therefore , The Fourth Angle of Quadrilateral is 109 degree .
Check :
68° + 75° + 108° + x = 360°
68° + 75° + 108° + 109° = 360°
251 + 109 = 360°
360° = 360°
Hence Checked
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