Two circles are shown in the diagram since all the circles are similar a proportion can be set up using the circumference and diameter of each circle substitute the values d,1=1,c1 =pi, and d2=2r into the proportion

A=bxh3.2x1.8=5.76 centimeters square

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?

Not sure what the question is but i hope this x = years100 * x