Quadrilaterals: Types and Properties (G8)

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Angles in Circles (G8)

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question 1 of 1 Grade: Eight - G8

Q: Three angles of a quadrilateral are x°, 2x° and y°. Express the size of the fourth angle in terms of x and y, in its simplest form.

The formula for the sum of interior angles is (n - 2) × 180°, where n is the number of sides. For n = 9, (9 - 2) × 180° = 7 × 180° = 1260°.

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The formula for the sum of interior angles is (n - 2) × 180°, where n is the number of sides. For n = 9, (9 - 2) × 180° = 7 × 180° = 1260°.

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