circumference AND AREA of circles

Master circle circumference and area! Practice problems and learn about Pi.

Circles, Circumference And Area Follow the entire video and make sure to pay attention to the formulas! 12 m 12.5 m 13.5 m 50 m 10 m 5 m 15.7 m 15m 17.5 m 3.14mm squared 31.4 mm squared 1 mm squared 314 m 6.28m 62.8 m 10.21 cm 102.1 cm 10.2 cm 15.7m 7.85m 12.85m 70,640 m squared 35,325 m squared 35,825 m squared 8 cm 4 cm 16 cm 426.7 m square 1,704.7 m square 36.6 m square 0.785 in. 1.57 in. 0.196 in. Explain how to find the area of any circle. Explain how to find the circumference of any circle. Explain what Pi is and why it's a special number.