" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
P=πr²
P=3,14*3²=28,26
b)
2.5 r=1,25
P=1,25²*3,14=4,90625
c)
1 r=0,5
P=0,5²*3,14=0,785
D)
π r=π/r
P=(π/₂)²*π=π²/2
zad 2
r=3
P=3²*3,14=28.16
sredn=20 r=10
P=10²*3,14=314
r=0,2
P=(0,2)²*3,14=0,1256
srednica 2,2 r=1,1
P=(1,1)²*3,14=3,7994
obw=3π
3π=2πr
3π-2π=r
π=r
P=π²*π=2π²=3,14²*3,14=19,7192