Name: SAT Math Help & School Math Mastery
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#33706

3d shapes

area

geometry

easy

45 sec

Two identical cubes, each with a side length of 5 cm, are glued together along one of their faces to form a rectangular prism. What fraction of the total surface area of the two separate cubes is lost when they are glued together?

A.

$\frac{1}{12}$

B.

$\frac{1}{6}$

C.

$\frac{1}{4}$

D.

$\frac{1}{3}$