Se connecter
Mathematics for IGCSE & O level - Mensuration (Section 6 - No. 16)
A sphere has a surface area of 1274 cm². Calculate its radius
10 cm
18 cm
20 cm
12 cm
Explication
Surface area = 4πr². r = √(SA / 4π). Therefore r = √(1274 / 4π) ≈ 10 cm
Commentaires (0)
Connectez-vous pour commenter
Publicité
Autoriser javascript à charger correctement cette page
