Form Formula

Rectangle Formula:

Rectangle



To count the are of rectangle is : Area = L x t
To count the circle of rectangle is: Circle = 2 (L+t)








Triangle


Triangle Formula:
Area = 1/2 A x t

Circle = A + 2 x s












Pythagoras Formula:
Pythagoras formula is for 90o triangle, the formula if we use the above rectangle become:

s2 = t2 + (1/2 A)2

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