Formula Sheet Flashcards by SHINJINI SARKAR

Q

Midpoint Formula

A

(x1 + x2) / 2 = Xm

(y1 + y2) / 2 = Ym

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Distance Formula

A

the square root of

(x2 - x1)^2 + (y2 - y1)^2

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

pythagorean theorem

A

c^2 = a^2 + b^2

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Slope Formula

A

x2 - x1

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Slope Intercept

A

y = mx + b

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

point-slope form

A

y - y1 = m(x - x1)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Standard Form

A

Ax + By = C

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Ratio of Lengths

A

Scale Factor

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Ratio of Areas

A

Scale Factor sqrd

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Ratio of Volumes

A

Scale Factor cubed

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

SOHCAHTOA

A

S=o/h C=a/h T=o/h

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Isosceles Triangle (45-45-90)

A

H=sqrt(2)L , L= H / sqrt (2)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

30-60-90 Triangle

A

H=2SL , LL=SL * sqrt(3)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Polygon Int Angle Theorem

A

(n-2)180

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Polygon Ext Angle Theorem

A

sum of ext angles = 360

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Rotation

Study These Flashcards

A

(x,y), 90(-y,x), 180 (-x, -y), 270 (y, -x)

Q

Tessellation

Study These Flashcards

A

360/intangle = whole #

Q

equation of a circle

Study These Flashcards

A

(x-h)sqrd + (y-k)sqrd = (r)sqrd

Q

Central Angle

Study These Flashcards

A

angle = arc

Q

inscribed Angle

Study These Flashcards

A

angle = 1/2 (arc)

Q

Interior Angle

Study These Flashcards

A

angle = 1/2 (arc+arc)

Q

Exterior Angle

Study These Flashcards

A

angle = 1/2 ( big angle - small angle)

Q

Intersecting Chords

Study These Flashcards

A

AEBE = CEDE, (AE)sqrd = (BE)sqrd