1.

The angles of a quadrilateral are 110°, 72°, 55° and x°. Find the value of x.

Answer»

We know that Sum of angles of a quadrilateral is = 360°

So,

110° + 72° + 55° + x° = 360°

x° = 360° – 237°

x° = 123o

∴ Value of x is 123o.



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