Three interior angles of a quadrilateral are given find x (81°,145°,51°,x°)
80°
60°
71°
83°
Answers
Answered by
1
Step-by-step explanation:
360 = 81+145+51+x
360 = 277+x
360-277=x
x= 53
Answered by
1
Answer:
83°
Step-by-step explanation:
We know that,
Sum of the interior angles of a quadrilateral = 360°
Therefore,
=> (81°+145°+51°+x°) = 360°
=> (277° + x°) = 360°
=> x° = 360° - 277°
=> x° = 83°
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