Odpowiedzi

2010-01-06T22:03:26+01:00
P=15²=225
p=8²=64
225+64=289
r=√289=17
4 4 4
2010-01-06T22:06:21+01:00
P= π r²
p1=π15²
p1= 225π
p2 = π8²
p2= 64π
225π+64π= 289π
√289π = 17


2 4 2
Najlepsza Odpowiedź!
2010-01-06T22:06:51+01:00
R₁ = 15 cm
r₂ = 8 cm
r₃ = ?

P1 = πr₁² = π225 cm²
P2 = πr₂² = π64cm²
P3 = P1+P2 = π289cm²
P3 = πr₃²
π289cm² = πr₃²
289cm² = r₃²
r₃ = √289cm²
r₃ = 17cm
3 4 3