Chris works in a tall building in downtown Columbia. We are going to view this skyscraper as a line segment. The building has an endpoint of point A at the top of the building, and an endpoint C at the front door. The
building is 43 stories tall. So we know that the length of AC = 43. Chris works at point B on the building
which is 12 stories above C. Find the length of AB.

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:

.

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

the photograph is photographer and- in the process- ourselves.

step-by-step explanation: