brazil-enem 2012 Q152

brazil-enem · Other · enem__day2 Not Maths
In plastic arts exhibitions, it is common for statues to be displayed on rotating platforms. A safety measure is that the base of the sculpture is fully supported on the platform. To provide the appropriate equipment, in the case of a square base that will be fixed on a circular platform, the technical assistant of the event must estimate the measure $R$ of the appropriate radius for the platform in terms of the measure $L$ of the side of the statue's base.
What relationship between $R$ and $L$ should the technical assistant present so that the safety requirement is met?
(A) $\mathrm{R} \geq L/\sqrt{2}$
(B) $\mathrm{R} \geq 2L/\pi$
(C) $\mathrm{R} \geq L/\sqrt{\pi}$
(D) $\mathrm{R} \geq L/2$
(E) $\mathrm{R} \geq L/(2\sqrt{2})$
In plastic arts exhibitions, it is common for statues to be displayed on rotating platforms. A safety measure is that the base of the sculpture is fully supported on the platform. To provide the appropriate equipment, in the case of a square base that will be fixed on a circular platform, the technical assistant of the event must estimate the measure $R$ of the appropriate radius for the platform in terms of the measure $L$ of the side of the statue's base.

What relationship between $R$ and $L$ should the technical assistant present so that the safety requirement is met?\\
(A) $\mathrm{R} \geq L/\sqrt{2}$\\
(B) $\mathrm{R} \geq 2L/\pi$\\
(C) $\mathrm{R} \geq L/\sqrt{\pi}$\\
(D) $\mathrm{R} \geq L/2$\\
(E) $\mathrm{R} \geq L/(2\sqrt{2})$