Shapes Flashcards by Jack Osborne

Q

How do you find the area of a circle?

A

A=πr2

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Q

How do you find the area of a right angled triangle?

A

A=height x base / 2

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Q

How do you find the area of a trapezium?

A

A=a+b/2 x height

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Q

What’s the circumference of a circle?

A

C=2πr

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Q

How do you find the area of a sector?

A

A=πr2 x centre angle/360°

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Q

How do you find the arc length?

A

C=2πr x centre angle/ 360°

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Q

What’s the formula for the volume of a sphere?

A

V=4/3 xπr3

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Q

What’s the formula for the volume of a cylinder?

A

V=πr2 x h

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Q

What’s the volume of a prism?

A

V= area of cross section x legnth

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