Brian made a burger. The diameter of the burger was 6 cm. What was the area of the burger?
Since the diameter of the burger was 6 cm6\ cm6 cm , the radius of the burger RRR was equal to 3 cm3\ cm3 cm. It follows that the area of the burger was πR2=9π≈28.26 cm2.\pi R^2=9\pi\approx 28.26\ cm^2.πR2=9π≈28.26 cm2.