205mm = 20.5cm 21cm > 20.5cm
2200mm (CIRC)
2200 mm = 86.6 inches.
1/3 of 21cm = 1/3*21 = 7 cm
A fifth of 21cm is 1/5 x 21 1/5 of 21 is 21/5, which is equal to 4.2 A fifth of 21cm is 4.2 cm
The approximate diameter of a circle whose circumference is 21cm is: 6.68cm
2200 millimeters is about 2.4 yards or 2 yards, 14 inches.
A = 1385cm2
area of a circle and the question is d=21cm
29.7cm by 21cm
A = 1,385.4 cm2
A = 346.36 cm2