The measure of an arc is equal to the measure of an arc's central angle.
So the measure of an arc with a central angle of 90 ° is also 90 °.
Herr, in German, means <em>mister, sir, gentleman, </em>or in elevated cases, <em>lord</em> or <em>master</em>.
It's important to realize something about German: cases.
There are four different cases in German, and they are:
nominative - when something acts as a subject
<em>(the person doing the action)</em>
accusative - when something acts as a direct object
<em>(the thing the action happens to)</em>
dative - when something acts as an indirect object
<em>(like accusative but preceded by to, at, in, etc.)</em>
genitive - when something acts as possessing something.
<em>(the person to whom something belongs)</em>
Here's a sample sentence.
<u>He came into the garage and stole John's bike.</u>
The subject, <em>he</em>, is nominative.
The direct object, <em>the bike,</em> is accusative.
The indirect object, <em>the garage</em>, is dative.
The person possessing something, <em>John</em>,<em> </em>is in the genitive.
In English, cases don't matter very much.
However, in German they are extremely important.
German cases even change how to <u>write and say words<em /></u><em>.
(This is called <u>declension</u>.)
</em>
Herr will appear as Herrn because of its <em>declension</em>.
In the nominative, it's <u>Herr</u>.
In any other case, it's <u>Herrn</u>. (i.e., when it's acting as the object of a sentence)
When it's plural, it's always <u>Herren</u>.
"is" in German would be "ist"
