Angles - Term 1 Flashcards Preview

Math - GCSE > Angles - Term 1 > Flashcards

Flashcards in Angles - Term 1 Deck (24)
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1
Q

What is the rule for angles on a straight line?

A

Angles on a straight line add up to 180*

2
Q

What is the rule for angle around a point?

A

Angles around a point add up to 360*

3
Q

What is the rule for vertically opposite angles?

A

Vertically opposite angles are equal

4
Q

What is the rule for angles on a triangle?

A

Angles on a triangle add up to 180*

5
Q

What is the rule about isosceles triangles

A

An isosceles triangle has two equal sides (lengths) and two equal base angles

6
Q

What is the rule for angles on a quadrilateral?

A

Angles on a quadrilateral add up to 360*

7
Q

What’s the rule for quadrilaterals to do with triangles?

A

All quadrilaterals can be split int two to make two triangles

8
Q

What are alternative angles in relationship to each other?

A

Alternative angles are equal

9
Q

What letters should you look for to find alternative angles?

A

Z and S

10
Q

What letters should you look for to find corresponding angles?

A

F

11
Q

What letters should you look for to find co-interior angles?

A

C

12
Q

What are corresponding angles in relationship to each other?

A

Corresponding angles are equal to each other

13
Q

What are co-interior angles in relationship to each other?

A

Co interior angles add up to 180*

14
Q

What does it mean for a shape to be regular?

A

All sides are the same shape and all angles are the same size

15
Q

What’s an easy way to work out the number of triangles in a shape?

A

Number of sides -2

16
Q

How many sides does a pentagon have?

A

5

17
Q

How many sides does a hexagon have?

A

6

18
Q

How many sides does a heptagon have?

A

7

19
Q

How many sides does a octagon have?

A

8

20
Q

How many sides does a nonagon have?

A

9

21
Q

How many sides does a decagon have?

A

10

22
Q

What is the equation to work out the interior angles in a shape?

A

(Number of sides - 2) x 180*

23
Q

What do an interior angle and an exterior angle add up to?

A

180*

24
Q

What do the exterior angles of a polygon add up to?

A

360*