JAMB - Mathematics (2015 - No. 31)
The volume of a cylinder whose height is 4cm and whose radius 5cm is equal to (π = 3.14)
3.13cm2
145cm2
314cm2
214cm2
คำอธิบาย
“Explanation
V = πr2h
V = ?, h = 4cm, r = 5cm
V = 3.14(5)2 (4)
V = 3.14(25)(4)
V = 3.14 × 1200
= 314cm2
V = πr2h
V = ?, h = 4cm, r = 5cm
V = 3.14(5)2 (4)
V = 3.14(25)(4)
V = 3.14 × 1200
= 314cm2