In a sphere of radius r, a right circular cone of height h having maximum curved surface area is inscribed. The expression for the square of the curved surface of the cone is
A. 2πr2rh (2rh + h2)
B. π2hr (2rh + h2)
C. 2π2r (2rh2 – h3)
D. 2π2r2 (2rh – h2)
Answer:C
In a sphere of radius r, a right circular cone of height h having maximum curved surface area is inscribed. The expression for the square of the curved surface of the cone is
A. 2πr2rh (2rh + h2) B. π2hr (2rh + h2) C. 2π2r (2rh2 – h3) D. 2π2r2 (2rh – h2)