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Maths > Angles And Crap > Flashcards

Angles And Crap Flashcards

1
Q

Angle sum

A

S=180(n-2)

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2
Q

Exterior angles of a polygon?

A

360

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3
Q

What are the 4 triangle congruent tests?

A

SSS, SAS, AAS, RHS

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4
Q

SSS

A

Three sides are equal to two sides of another

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5
Q

SAS

A

Two sides and included angle are equal

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6
Q

AAS

A

Two angles and a side

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7
Q

RHS

A

Right angle, hypotenuse and side(only if right angle triangle)

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8
Q

Acute?

A

Less than 90

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9
Q

Right

A

90

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10
Q

Reflex

A

180-360

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11
Q

Straight

A

180

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12
Q

Revolution

A

360

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13
Q

Obtuse

A

90-180

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14
Q

Scalene

A

No equal sides

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15
Q

Isosceles

A

2 sides

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16
Q

Equilateral

A

3 sides

17
Q

Right angle

A

Has a right angle…

18
Q

Complementary

A

Add to 90

19
Q

Supplementry

A

Add to 180

20
Q

Vertically opposite

A

Equal

21
Q

Corresponding

A

Corresponding angles in parallel lines are equal

22
Q

Aleternate

A

Alternate angles in parallel lines are equal

23
Q

Co-interior

A

Co-interior angles in parallel lines are supplementary

24
Q

What is the first similar triangles test?

A

If 3 sides of a triangle are proportional to 3 sides of another triangle then the 2 triangles are similar

25
Q

What is the second similar triangle test

A

If two sides of a triangle are proportional to two sides of another triangle and the included angles are equal, then the two triangles are similar

26
Q

What is the 3rd similar triangle test?

A

If two angles of a triangle are equal to two angles of another triangle, then the two triangles are equal

27
Q

What is the 4th similar triangle test?

A

If the hypotenuse and a second side of a right angled triangle are proportional to the hypotenuse and a second side of another right angled triangle then the two triangles are similar

28
Q

What is the exterior angle theorem

A

The exterior angle of a triangle is equal to the sum of the two opposite interior angles

Maths (6 decks)

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