Find the Area of the Green Shaded Region Around a Semicircle in a Quadrilateral | In-Depth Tutorial

Learn how to find the area of the shaded region surrounding a semicircle in a rectangle by using the 3-4-5 Right Triangle, Corresponding Angles Postulate, Tangent to a Circle Theorem, Angle-Angle-Angle Theorem, and the Pythagorean Theorem. Simple step-by-step explanation by PreMath.com