Oblicz jaki promień ma koło o polu:a) 16 π cm ²
b) 10 cm²
c) 400 m²
Z obliczeniami proszę .
p= π r²
16 π cm² = πr²
πr²= 16 π / :π
r² = 16
r = √16
r = 4
Odp. Promień wynosi 4 cm.
P = π r²
10 cm² = π r²
r² = 10:π
r = √10:π
P = π r ²
400 cm² = πr²
r² = 400 : π
r = √400 : π
r = 20 √π
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
p= π r²
16 π cm² = πr²
πr²= 16 π / :π
r² = 16
r = √16
r = 4
Odp. Promień wynosi 4 cm.
P = π r²
10 cm² = π r²
r² = 10:π
r = √10:π
P = π r ²
400 cm² = πr²
r² = 400 : π
r = √400 : π
r = 20 √π