21cm is about 8.27 inches.
Multiply cm by 0.394: 21cm x 0.394 = about 8.274 inches.
21 centimeters x 1 inch/2.54 centimeters = 8.267716535 inchesThere are 8.267716535 inches in 21 centimeters.
205mm = 20.5cm 21cm > 20.5cm
1/3 of 21cm = 1/3*21 = 7 cm
21cm is about 8.27 inches.
Multiply cm by 0.394: 21cm x 0.394 = about 8.274 inches.
Lets see 21x12.7=266.7 266.7/30=8.89 so answer is 8.89 inches
21 centimeters x 1 inch/2.54 centimeters = 8.267716535 inchesThere are 8.267716535 inches in 21 centimeters.
To be exact, it's 29.7cm x 21cm. In inches that would be 11.7 in x 8.3 in.
53.34 cm =21 inches Algebraic Steps / Dimensional Analysis Formula 21 in* 2.54 cm 1 in = 53.34 cm
205mm = 20.5cm 21cm > 20.5cm
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
2200mm
A = 1385cm2