Answer:
The length of the arc shown in red is 
Step-by-step explanation:
step 1
Find the circumference of the circle
The circumference is equal to

we have

substitute


step 2
Find the length of the arc in red
Remember that the length of the circumference subtends a central angle of 360 degrees
so
by proportion find the length of the arc by a central angle of 110 degrees

Simplify

C is your answer because the circle is open and not colored.
First, identify what fracion of an hour Larre spent outside using the model.
Since the square is divided in 4 equal parts, then the denominator of the fraction that Larre wants to represent is 4.
On the other hand, since 2 of those 4 parts are colored, then the numerator of the fraction that Larre wants to represent is 2.
Then, the fraction represented by the visual model is:

To find the answer, find an equivalent fraction by multiplying both the numerator and the denominator by 2:

Therefore, an equivalent fraction that can be made by multiplying the numerator and denominator by 2, is:

The correct choice is option C) 4/8.