#### Answer

$180^o$

#### Work Step by Step

There are 12 hours around a clock.
One rotation around the clock makes 360 degrees.
This means that in each hour, a clock's hand moves:
$=\dfrac{360^o}{12}
\\=30^o$
There are 6 hours from 1 o'clock to 7 o'clock.
This means that from 1 o'clock to 7 o'clock, the clock's hour hand moves:
$=6(30^o)
\\=180^o$