Why do the hands on the clock form an angle? OA.
The hands are two line segments that share the same endpoints
OB.
The hands are two line segments that are perpendicular to one another.
C.
The hands lie in the same plane.
OD.
The hands lie in the same circle.

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step-by-step explanation:

here is your mark brainliest

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72

arc length = 6.63311 ft.

step-by-step explanation:

the formula the arc measure is:

arc length s=2πr(c)/360

where:

c   is the central angle of the arc in degrees

r   is the radius of the arc

π   is pi, approximately 3.142

using the above formula we get

s =

thus we find that arc length of an arc for a circle of radius 20 feet and central angle 19 degrees is

6.63311 feet