How do you find the diameter of a circle if you know the radius?

The circumference of a circle is 5 pi cm. what is the area of the circle?

In the diagram, the ratios of two pairs of corresponding sides are equal to prove that almn - axyz by the sas similarity theorem, it also needs to be shown that x 6 z un z zz un = 2x zləzz lezy

In an improper fraction, is the numerator equal to, less than, or greater than the denominator