Geometry circle a has a radius of (x + 4) units. a larger circle, b, has a radius
of (x + 5) units. use the formula a = ar to write an expression for the difference
in the areas of the circles. leave your answer in terms of tt. then use 3.14 for it to
approximate to the nearest whole number the difference in the areas when x= 10.

Prove the converse of the pythagorean theorem using similar triangles. the converse of the pythagorean theorem states that when the sum of the squares of the lengths of the legs of the triangle equals the squares length of the hypotenuse, the triangle is a right triangle. be sure to create and name the appropriate geometric figures.