1103107005 | math4u.vsb.cz

SubArea:

Metric properties

Level:

Project ID:

1103107005

Accepted:

1

Clonable:

1

Easy:

0

Let

A B C D E F A^{'} B^{'} C^{'} D^{'} E^{'} F^{'}

be a regular hexagonal prism with the base edge length of

4 cm

and the height of

8 cm

. Find the angle between the plane

A D D^{'}

and the plane

A E E^{'}

(see the picture).

30^{\circ}

60^{\circ}

45^{\circ}

{22.5}^{\circ}