Bacteria live in groups called colonies. colonies are usually circular. the diameter of a particular bacterial colony is 12 mm. the circumference of a circle is equal to pi (3.14) times the diameter (c = pi times the diameter)
1.what is the circumference of the colony?
2.what is the radius of the colony

the circumference is

3.14 times the diameter or

3.14 x d

since d is 8 the equation becomes

3.14 x 8 = 25.12 mm in circumference.

Explanation:

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an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.