In designing an auditorium to hold a total of 6000 seats the architect needs to plan how many rows are needed if there are four seats in the first row and each additional row needs five more seats than the previous row how many rows with the architect need to plan for

which expression represents the approximate length of bc?

step-by-step explanation:

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

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to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

more detail

step-by-step explanation: