[size=150][color=#38761D]V tejto aktivite si precvičíš určovanie vzájomnej polohy priamky a kružnice. Pozoruj priamky [i]a, b, c, d[/i] a kružnice [i]k[sub]1[/sub], k[sub]2[/sub], k[sub]3[/sub][/i]. Urči ich vzájomné polohy a odpovedz na otázky pod apletom. [/color][/size]
[size=150][b][color=#cc0000]Vzájomná poloha priamky a kružnice závisí od počtu ich spoločných bodov:[/color][/b][br][i]Ak má priamka a kružnica[color=#9900ff] dva spoločné body[/color], hovoríme, že priamka je [color=#9900ff][b]sečnica[/b][/color] kružnice.[br]Ak priamka [color=#0000ff]nemá[/color] s kružnicou [color=#0000ff]spoločné body[/color], hovoríme, že priamka je [b][color=#0000ff]nesečnica[/color][/b] kružnice.[br]Ak má priamka a kružnica práve [color=#f1c232]jeden spoločný bod[/color], hovoríme, že priamka je [color=#f1c232][b]dotyčnica[/b][/color] kružnice.[/i][/size]
[size=150][color=#f1c232]Priamka [i]a[/i][/color] je ______________ [color=#00ff00]kružnice [i]k[sub]1.[/sub][/i][/color][/size][color=#00ff00][i][sub][/sub][/i][/color]
[size=150][color=#f1c232]Priamka [/color][i][color=#f1c232]a[/color] [/i]je __________ [color=#6fa8dc]kružnice [i]k[sub]2[/sub][/i][/color].[/size]
[size=150][color=#f1c232]Priamka [/color][i][color=#f1c232]a[/color] [/i]je _____________ [color=#ff0000]kružnice [i]k[sub]3[/sub][/i][/color].[/size]
[size=150][color=#ff7700]Priamka [/color][i][color=#ff7700]b[/color] [/i]je _____________ [color=#00ff00]kružnice [i]k[sub]1[/sub][/i][/color].[/size]
[size=150][color=#ff7700]Priamka [/color][i][color=#ff7700]b[/color] [/i]je _____________ [color=#6fa8dc]kružnice [i]k[sub]2[/sub][/i][/color].[/size]
[size=150][color=#ff7700]Priamka [/color][i][color=#ff7700]b[/color] [/i]je _____________ [color=#ff0000]kružnice [i]k[/i][/color][sub][i][color=#ff0000]3[/color][/i].[/sub][/size]
[size=150][color=#0000ff]Priamka [/color][i][color=#0000ff]c[/color] [/i]je _____________ [color=#00ff00]kružnice [i]k[sub]1[/sub][/i][/color].[/size]
[size=150][color=#0000ff]Priamka [/color][i][color=#0000ff]c[/color] [/i]je[i] ____________[/i] [color=#6fa8dc]kružnice [i]k[sub]2[/sub][/i][/color][color=#3d85c6].[/color][/size]
[size=150][color=#0000ff]Priamka [/color][i][color=#0000ff]c[/color] [/i]je ___________ [color=#ff0000]kružnice [i]k[sub]3[/sub][/i][/color].[/size]
[size=150][color=#ff00ff]Priamka [/color][i][color=#ff00ff]d[/color] [/i]je ____________ [color=#00ff00]kružnice [i]k[sub]1[/sub][/i][/color].[/size]
[size=150][color=#ff00ff]Priamka [/color][i][color=#ff00ff]d[/color] [/i]je ____________ [color=#6fa8dc]kružnice [/color][/size][color=#6fa8dc][i]k[sub]2[/sub][/i][/color].
[size=150][color=#ff00ff]Priamka [/color][i][color=#ff00ff]d[/color] [/i]je ______________ [color=#ff0000]kružnice [i]k[sub]3[/sub][/i][/color].[/size]