Breaking the law of cosines, even tangentially, is a sine
A quadrilateral is inscribed within a circle.
Side AB = 4x − 1, side BC = 5x − 4, side CD = 3x + 1, side DA = x + 7
The measure of angle ے CDA = 109.8830°.
Find the perimeter P and the area A of the quadrilateral.
P = ______ units A = ______ units²
The first correct answer to arrive at [email protected] wins a valuable gift card for Tucker’s Ice Cream of Alameda.
Last week’s winner was Adrian Flores (an EHS Grad) with Area = 113629.
Jeff Smith is a former Math teacher and a retired US Navy Lieutenant Commander. Reach him at [email protected].