Three angles of a quadrilateral are 75°, 90° and 75°. Find the fourth angle.
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Answered by
4
Answer:
Sum of angles of a quadrilateral is 360°
∴ fourth angle be,
⇒ 360−(75+90+75)=120°
Answered by
4
Answer:
the sum of all the angles of a quadrilateral is =(n-2)*180°=(4-2=2)*180°=2*180=360°
Let the fourth angle be x
75+75+90+x=360
210+x=360°
x=360°-240°
x=120°
so the fourth side is 120°
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