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Unlock harder levels by getting an average of 80% or higher.

Earn up to 5 stars for each level

The more questions you answer correctly, the more stars you'll unlock!

Each game has 10 questions.

Green box means correct.

Yellow box means incorrect.

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VIII - Geometry

Standard 8.G.1.1 - Use the fact that the angle sum of triangles is 180º and quadrilaterals is 360º to find the missing interior angle.

Included Skills:

Understanding shapes:

â€¢ Properties of quadrilaterals â€ Sum of angles of a quadrilateral is equal to 360° (By verification)

â€¢ Properties of parallelogram (By verification)

- Opposite sides of a parallelogram are equal,

- Opposite angles of a parallelogram are equal,

- Diagonals of a parallelogram bisect each other. [Why (iv), (v) and (vi) follow from (ii)]

- Diagonals of a rectangle are equal and bisect each other.

- Diagonals of a rhombus bisect each other at right angles.

- Diagonals of a square are equal and bisect each other at right angles.

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