Find the exact length of the diagonal (in blue) of one of one of the faces of the cube.
A) 10 cm
B) 15 cm
C) $2 \sqrt { 10 }$ cm
D) $5 \sqrt { 2 }$ cm
E) $\frac { 5 \sqrt { 2 } } { 2 }$ cm

Question

Find the exact length of the diagonal (in blue) of one of one of the faces of the cube. 
A) 10 cm 
B) 15 cm 
C) $2 \sqrt { 10 }$ cm 
D) $5 \sqrt { 2 }$ cm 
E) $\frac { 5 \sqrt { 2 } } { 2 }$ cm

Quizplus · Accepted Answer

The Answer of Find the exact length of the diagonal (in blue) of one of one of the faces of the cube. 
A) 10 cm 
B) 15 cm 
C) $2 \sqrt { 10 }$ cm 
D) $5 \sqrt { 2 }$ cm 
E) $\frac { 5 \sqrt { 2 } } { 2 }$ cm

Find the Exact Length of the Diagonal (In Blue) of One