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| Question | Answer |
| Circumference of circle | Circumference=Pi x d |
| The perimeter of a sector | Perimeter=2r + angle/360 x 2Pi x r |
| Area of parallelogram | A=bh |
| Area of rhombus | A=1/2 xy |
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Area of trapizium
Image:
Trap (binary/octet-stream)
|
A=1/2 h (a+b) |
| Area of a circle | A=Pi x r squared |
| Area of a sector | A=angle/360 x Pi x r squared |
| Area of a kite | A=1/2 xy |
| Surface area of prisms | Area of all 2D shapes added together |
| Surface area of pyrimids | SA=area of base + area of triangle x amount of triangles. To figure out the height of the triangle you use Pythagoras theorem find the slant height of the pyramid |
| The surface area of a cylinder | SA= area of rectangle + 2 areas of circles SA=2 x Pi x r x h + 2 x Pi x r squared |
| The volume of a prism | V=Area x height |
| Quadratic equations | If you square root something make sure you right the positive/negative sign |
| Inequations | More ink on the sign more ink on the line |
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