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12 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Area of a triangle |
A = ½bh |
You need to half the area of a rectangle. |
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Area of a parallelogram |
A = bh |
The area is similar to a rectangle |
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Area of a trapezium |
A = ½(a + b)h |
Add the parallel sides first. |
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Area of a circle |
A = πr² |
You use the radius |
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Circumference of a circle |
C = πd Or 2πr |
Use the diameter. |
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Pythagoras Theorem |
a² + b² = c² Only used for right angle triangles |
C is the hypotenuse |
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Volume of a Cylinder |
V = πr²h |
Start with the area of a circle |
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Volume of a prism |
V = area of cross sections x height |
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Surface area of a cylinder |
SA = 2πr² + 2πrh |
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Volume of a pyramid |
V = ¹/₃ area of base x height |
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The quadratic formula |
x = −b ± √(b²−4ac) 2a |
Sing happy birthday! |
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Sine rule |
For length: a = b = c sin(A) sin(B) sin(C)
For angle: sin(A) = sin(B) = sin(C) a b c |
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