Triangle ABC is similar to triangle A'B'C'. Calculate the length of side A'B! Then check your answer using a different method.

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.

Arational number that is equivalent to -20/4?

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.