2010014609 | math4u.vsb.cz

Podoblasť:

Geometria v rovine

Časť:

Project ID:

2010014609

Source Problem:

Accepted:

0

Clonable:

1

Easy:

0

Určte uhol

φ

priamok

2 x + 1 = 0

a

x - y + 7 = 0

.

45^{\circ}

60^{\circ}

90^{\circ}

30^{\circ}