" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
= 2.3,14.10(10 + 30)
= 6.28.10(40)
= 62,8(40)
= 2512 cm²
2×3,14×10 (10+30)
62,8×40
= 2512 cm²