There are 680 more fiction books than non-fiction books in a library. 3/4 of the number of non-fiction books is equal to 2/3 of the number of fiction
books. How many fiction books are there?

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.

5

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:

.

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

no i do not : ( what is it?