#8 - A roller coaster takes riders up a 90 meter hill, then drops them 74 meters down and takes them back up a 30 meter hill followed by a 46 meter drop. What is the roller coasters elevation after the second drop, compared to where the roller coaster begins? Write your answer as an equation, and solve.

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im not sure

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.