RRB NTPC · प्रश्न 13
The volume (in cu. cm) of a right circular cylinder with radius 7 cm and height 2 cm is: (Take π = 22/7)
उत्तर दाखवा आणि स्पष्टीकरण
उत्तर: (A) 308
स्पष्टीकरण
Volume of a cylinder = πr²h = 22/7 × 7 × 7 × 2 = 22 × 7 × 2 = 308 cubic cm.