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Maths > Geometry > Flashcards

Geometry Flashcards

1
Q

What do the angles of a triangle add up to?

A

180 degrees

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2
Q

What do angles on a straight line add up to?

A

180 degrees

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3
Q

What do the angles in a quadrilateral add up to?

A

360 degrees

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4
Q

What do the angles round a point add up to?

A

360 degrees

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5
Q

What type of triangle has two sides the same and two angles the same?

A

Isosceles

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6
Q

What are the 5 rules you need to know for working out problems with lines and angles

A
  1. Angles in a triangle add up to 180
  2. Angles on a straight line add up to 180
  3. Angles in a quadrilateral add up to 360
  4. Angles round a point add up to 360
  5. Isosceles triangles have 2 sides the same and two angles the same
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7
Q

What are the 3 parallel line rules you need to know for working out angles

A
  1. The two bunches of angles formed at the points of intersection are the same.
  2. There are actually only two different angles involved and they add up to 180 degrees
  3. Vertically opposite angles are equal
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8
Q

What are allied angles?

A

Alternate angles are the same. They are found in a z shape.

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9
Q

What are allied angles?

A

Allied angles add up to 180 degrees. They are found in a C or U shape.

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10
Q

What are corespondent angles?

A

Corresponding angles are the same. They are found in a F shape.

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11
Q

What is three letter notation?

A

ABC means the angle formed at B

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12
Q

Name a 3 sided regular polygon

A

Equilateral triangle

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13
Q

Name a 4 sided regular polygon

A

Square

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14
Q

Name a 5 sided regular polygon

A

Pentagon

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15
Q

Name a 6 sided regular polygon

A

Hexagon

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16
Q

Name a 7 sided regular polygon

A

Heptagon

17
Q

Name an 8 sided regular polygon

A

Octagon

18
Q

Name a nine sided regular polygon

A

Nonagon

19
Q

Name a 10 sided regular polygon

A

Decagon

20
Q

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

A

360 degrees

21
Q

See p 112 for formulas for interior and exterior angles that you need to know

A

.

Maths (6 decks)

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