?

AP® Calculus AB-BC

Free Version

Upgrade subject to access all content

Moderate

Cross-Sectional Triangles

APCALC-BDRIAX

The base of a solid is an ellipse bounded by the curve $2x^2 + y^2 = 8$.

Find the volume of the solid formed by cross-sections perpendicular to the x-axis that are isosceles right triangles with a leg in the base.

A

$\cfrac{32}{3}$

B

$\cfrac{64}{3}$

C

$\cfrac{128}{3}$

D

$\cfrac{80\sqrt{2}}{3}$