Geometry (Edexcel GCSE Maths): Quizzes

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Fundamental angle properties in geometry
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12 questions from this quiz

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What is the sum of interior angles in any triangle?

180°180°

A triangle has angles of 50°50° and 70°70°. What is the third angle?

60°60°

What do angles on a straight line always sum to?

180°180°

What is the sum of interior angles in any quadrilateral?

360°360°

Why do quadrilateral angles sum to 360°360°?

Two triangles: 180°+180°180° + 180°

What do angles around a single point always sum to?

360°360°

What does an exterior angle of a triangle equal?

Sum of two opposite interior angles

In the exterior angle theorem, if a+b=da + b = d, what is dd?

Exterior angle

What special property do isosceles triangles have?

Two equal sides and two equal angles

An isosceles triangle has the different angle of 100°100°. What are the equal angles?

40°40° each

In the note's example, an isosceles triangle with 140°140° has equal angles of what?

20°20° each

How many essential angle rules are described as fundamental in the note?

Six

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