All Maths Equations You Need To Know Flashcards by Kishon Robertrubakaran | Brainscape

Q

What is the area for a rectangle?

A

Length x width

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Q

What is the area for a parallelogram?

A

Base x height

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Q

What is the area for a triangle?

A

0.5 x base x height

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Q

What is the area for a trapezium?

A

0.5 x (a + b)h

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Q

What is the circumference of a circle?

A

𝛑 x diameter

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Q

What is the area of a circle?

A

𝛑 x radius squared

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Q

What is the quadratic equation?

A

b±√(b squared -4ac)/2a

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Q

What is the volume of a cuboid?

A

Length x width x base

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Q

What is the volume of a prism?

A

Area of cross sectional x length

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Q

What is the volume of a cyclinder?

A

𝛑 x radius squared x height

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Q

What is the volume of a pyramid?

A

1/3 x area of base x height

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Q

What is the equation for speed?

A

Distance/time

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Q

What is the equation for density?

A

Mass/volume

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Q

What is the sine rule?

A

A B C
—— = —— = ———
Sin A Sin B Sin C

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Q

What is the cosine rule?

A

a squared = b squared + c squared - 2bc cos(a)

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Q

What is the area of a triangle(trigonometric formulae) ?

A

1/2 ab sin c