Measurement-Perimeter & Area Flashcards

1
Q

Perimeter of square

A

P=4s

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2
Q

Perimeter of rectangle

A

P= 2l+2w

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3
Q

Perimeter of irregular polygon

A

P= sum of sides

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4
Q

Perimeter of triangle

A

P= sum of sides

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5
Q

Define polygon

A

Many sided shape

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6
Q

Define regular polygon

A

All sides are the same length

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7
Q

What is the name of a regular quadrilateral?

A

Square

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8
Q

What is the name of a regular triangle

A

Equilateral

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9
Q

Perimeter of equilateral

A

P= 3s

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10
Q

Define perimeter

A

Total distance around the outside of a 2D shape

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11
Q

How many centimeters in a metre

A

1m=100cm

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12
Q

How many meters in a kilometer

A

1km= 1000m

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13
Q

How many mm in a centimeter

A

1cm= 10mm

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14
Q

Pythagoras Theorem to find hypotenuse

A

c^2= a^2 + b^2

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15
Q

Pythagoras’ Theorem to find short side

A

a^2= c^2 - b^2

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16
Q

Area of square

A

A= s^2

17
Q

Area of triangle

A

A= 1/2 bh

18
Q

Area of rectangle

A

A=lw

19
Q

Area of parallelogram

A

A=bh

20
Q

Area of trapezium

A

A= 1/2(a+b)h

21
Q

Area of circle

A

A=pi x r^2

22
Q

What is the name for distance around a circle

A

Circumference

23
Q

What are the 2 circumference formulas

A
C= 2pi x r  OR
C= pi D
24
Q

Arc length

A

Arc= theta/360 x 2 pir

25
Q

Perimeter of sector

A

P = 2r + arc

26
Q

Area of sector

A

A= theta/360 x pi*r^2