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Three angles of a quadrilateral are equal. Fourth angle is of measure 150°. What is the measure of equal angles?

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Three angles of a quadrilateral are equal. Fourth angle is of measure 150°. What is the measure of equal angles?

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

Let each angle be x°

So,

150° + x° + x° + x° = 360°

3x° = 360° – 150°

x°= 210°/3

= 70°

∴ Value of equal angles is 70° each.

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