Mathematical Equations Flashcards

1
Q

What is the system of units in technology?

A
Tera - x10 /\12
Giga - x10 /\9
Mega - x10 /\6
Kilo - x10 /\3
Milli = x10 /\ -3
Micro - x10 /\-6
Nano - x10 /\ -9
Pico - x10 /\ -12
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2
Q

Calculating area of rectangle/square

A

length * width

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3
Q

Calculating area of a circle

A

Pi * R/\2

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4
Q

Calculating circumference of a circle

A

Pi * 2R

or Pi * D

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5
Q

Area of a triangle

A

1/2 * base * height

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6
Q

Trigonometry

A
Sin(x) = O / H
Cos(x) = A / H
Tan(x) = O / A
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7
Q

How to calculate tolerance?

A

Acceptable values each side of required range that allows for tolerance to be acceptable.

eg. 1000mm +/- 2mm =

1002mm (biggest)
998mm (smallest)

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8
Q

Standard form?

A

Number under 10 * 10 /\ number

eg. 3.2 * 10/\3 = 3200.

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