One circle has radius of 98 cm and a second concentric circle has a radius of 1 m26 cm. How much longer is the circumference of the second circle than that of the first?
What is the approximate circumference of a circle that has a radius of 14 cm?
If the circumference of a circle with diameter 1 unit is about 3.14 units,
Then calculate the approximate length of the circumference of a circle that has:
a. 1.5 cm diameter b). 3.5 cm diameter c). radius is 1.62 cm