Answer:
The arc length of the semicircle is or
Step-by-step explanation:
The complete question in the attached figure
we know that
The circumference of a semicircle is given by the formula
where
D is the diameter of the semicircle
we have
substitute
----> exact value
Assume
----> approximate value
therefore
The arc length of the semicircle is or
ANSWER
10.0 ------- Vivian is correct
EXPLANATION
Firstly, find the cube root of 1010
In the above calculation, the cube root of 1010 is 10.003
The correct approximation of the above value is 10.0. This is because the hundredth value is not upto 5
Recall, figures from 1 - 4 are rounded to zero and figures from 5- 9 are rounded up to 1
since 3 is not upto 5, so it is rounded down to zero
Therefore, Vivian is correct
