1103018903 | math4u.vsb.cz

SubArea:

Metric properties

Level:

Project ID:

1103018903

Accepted:

1

Clonable:

0

Easy:

0

In the cube

A B C D E F G H

with

S_{A C}

being the midpoint of the diagonal

A C

, let

φ

be the angle between the line

E S_{A C}

and the bottom face

A B C D

. Choose the correct expression for

φ

.

tg φ = \sqrt{2}

\sin φ = \frac{\sqrt{2}}{3}

tg φ = \frac{\sqrt{2}}{2}

\cos φ = \frac{\sqrt{6}}{3}