AQA · Mathematics · 8300

GCSE Maths: Angles: full circle (at a point)

Geometry & Measures · AQA GCSE Maths (8300). Cards are generated from the Corbettmaths practice questions for Angles: full circle (at a point) (Corbettmaths Video 30), and every card links back to the exact page it came from. Practice tests are drawn from this deck’s own cards. Source material © Corbettmaths — used with attribution.

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  1. What is the sum of angles in a quadrilateral?

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    360°

  2. What is the sum of angles in a triangle?

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    180°

  3. What property do the two base angles of an isosceles triangle have?

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    They are equal in size.

  4. Can a triangle have two obtuse angles?

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    No. Two obtuse angles (each greater than 90°) would sum to more than 180°, exceeding the triangle angle sum.

  5. Can a triangle have a reflex angle?

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    No. A reflex angle (greater than 180°) alone would exceed the total angle sum of a triangle (180°).

  6. What are the three angles in a right-angled triangle if one angle is 90°?

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    One angle is 90°, and the other two angles must sum to 90° (they are complementary).

  7. What is the sum of angles around a point?

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    360°

  8. What is the sum of angles on a straight line?

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    180°

  9. If an isosceles triangle has one angle of 84°, what are the two possible pairs of other angles?

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    Either both base angles are 48° each (if 84° is the apex), or the other two angles are 84° and 12° (if 84° is a base angle).

  10. What property do opposite angles in a parallelogram have?

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    They are equal in size.

  11. If the three angles in a triangle are in the ratio 2:6:7, what is the size of the smallest angle?

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    24°. The ratio parts sum to 15, so each part represents 180°/15 = 12°, making the smallest angle 2 × 12° = 24°.

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