Log ind
Mathematics for IGCSE & O level - Mensuration (Section 2 - No. 40)
A sphere has a surface area of 1274 cm². What is its radius?
10 cm
20 cm
18 cm
12 cm
Forklaring
Surface Area = 4πr². r = √(SA / 4π). Therefore r = √(1274 / 4π) ≈ 10 cm
Kommentarer (0)
Log ind for at kommentere
Reklame
Tillad, at javascript indlæser denne side korrekt
