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the algebraic rule that tells you how each term is formed in an arithmetic sequence: common difference (d) = T2 – T1 = T3 – T2
a measure of statistical distribution that represents the difference between the first and third...
in any right-angled triangle the sum of the squares on the two right-angle sides is equal to the...
a transformation in which a shape is enlarged from a centre of enlargement by a scale factor....
if the corresponding sides of two triangles are proportional, then the triangles are equi-...