Someone can you me i don't get it .

The first fraction divided by the second fraction is equivalent as multiplying the inverse of the second fraction

So the numerator in total will be: (a-4)(a+3)^2(a-1)

Denominator: 2(a^2 - a)(a-4) = 2a(a-1)(a-4)

Then, the same factor of numerator and denominator will be canceled out:

which are: (a-4)(a-1)

So the final (a+3)^2 / 2a

This is what i found “answer: a rigid transformation preserves both the side lengths and the angle measures of a polygon. step-by-step explanation: rigid transformations are the transformations which does not affect the size and the shape of figure .” i hope this you for what your looking for. can you plz mark me brainliest?

Idrk but i think u should figure out the n dia n then the units it will make it way more easier