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Question
the angles of quadrilateral are 40`,70`,90` and x`.Find the x`.
the angles of quadrilateral are 40`,70`,90` and x`.Find the x`.
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Solution
Given, four angles of a quadrilateral are 40°, 70°, 90° and x°.
We know that the sum of all angles of a quadrilateral is equal to 360°.
⇒ 40° + 70° + 90° + x° = 360°
⇒ 200° + x° = 360°
⇒ x° = 360° - 200° = 160°
Given, four angles of a quadrilateral are 40°, 70°, 90° and x°.
We know that the sum of all angles of a quadrilateral is equal to 360°.
⇒ 40° + 70° + 90° + x° = 360°
⇒ 200° + x° = 360°
⇒ x° = 360° - 200° = 160°
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