Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

UNIT 16H - Circle Theorems > Definitions > Flashcards

Definitions Flashcards

1
Q

Diameter

A

Straight line through centre of circle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Radius

A

Straight line from centre of circle to edge

(half diameter)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Centre

A

Middle of circle

(where point of compass would go)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Tangent

A

Straight line that ‘‘just touches’’ the circle at one point

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Circumference

A

The distance around a circle

(the perimeter)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Chord

A

Straight line that goes through the circle, BUT not through the centre

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Segment

A

An area produced by drawing a chord (uncivilised slice of pizza)

major=bigger

minor=smaller

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Sector

A

the area between two radii

(like a slice of pie/pizza)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Arc

A

A partial bit of the circumference

major=bigger

minor=smaller

(often between two radii, like the crust if a pizza)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Subtended Angle

A

An angle within a circle is created by two chords meeting at a point on the circumference. The diagrams below show the angle subtended by arc AC from point B for two different circles.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Alternate Angles

A

Alternate Interior Angles are a pair of angles on the inner side of each of those two lines but on opposite sides of the transversal.

(doesn’t have to be two parallel lines)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Congruence

A

Identical shapes (size, angles, sides)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Isosceles triangle

A

Triangle with two angles and sides that are the same

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Solve

A

Find the value of the unknown, normally a letter (x)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Radii

A

Plural of radius, meaning two or more

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Sum

A

means to add together

17
Q

Semi circle

A

half a circle

18
Q

Right angle

A

a 90 degree angle

19
Q

Quadrilateral

A

any four sided shape (where all sides are straight lines)

20
Q

Cyclic quadrilateral

A

A four sided shape where each vertex lies on the circumference

21
Q

vertex

A

the corner of a 2d shape, where two lines meet

22
Q

Origin (on graph)

A

The centre of the graph, co-ordinate (0, 0)

23
Q

Gradient

A

the rate of change, how steep a line is

24
Q

perpendicular

A

lines are perpendicular if they meet at 90 degree angles

25
Q

parallel

A

lines are parallel if they never meet

UNIT 16H - Circle Theorems (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions