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$29.99 provides 1 year of usage for the following equations:

30-60-90 triangle

45-45-90 triangle

brahmagupta equation

circle angles

equilateral polygon area w/apothem

polygon volumes and surface area

equilateral polygon area w/sides

heron’s formula

law of sines and cosines

polygon areas

pythagorean theorem

radian to degree converter

sohcahtoa

triangle geometric mean

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### tech specs

calculator / pc requirements:

ti-84 plus CE

windows 10

### important:

after purchase, follow the installation instructions in the new order email from equationiq

each equation is individually tested and verified with every new release

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