Are same side interior angles congruent?

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?

Assume that a population of 50 individuals has the following numbers of genotypes for a gene with two alleles, b and b: bb = 30, bb = 10, and bb = 10. calculate the frequencies of the two alleles in the population’s gene pool.

What is the volume of a cone with a height of 6 cm in the radius of 2 cm