Answer:
89.95 inches.
Step-by-step explanation:
We are asked to find the best approximation for the perimeter of a semicircle whose diameter is 35 inches.
[tex]\text{Perimeter of semicircle}=\frac{1}{2}\pi\times D+D[/tex], where D represents diameter of semicircle.
Upon substituting D=35 and [tex]\pi=3.14[/tex] in above formula we will get,
[tex]\text{Perimeter of semicircle}=\frac{1}{2}\times 3.14\times 35+35[/tex]
[tex]\text{Perimeter of semicircle}=3.14\times 17.5+35[/tex]
[tex]\text{Perimeter of semicircle}=54.95+35[/tex]
[tex]\text{Perimeter of semicircle}=89.95[/tex]
Therefore, perimeter of our given semicircle is 89.95 inches.
Answer:
54.95 inches.
Step-by-step explanation:
Perimeter of a circle = 2πr
where π = 3.14 and r is the radius of semicircle.
Given that,
diameter of semicircle = 35 inches
radius of semicircle will be half of its diameter = 35/2 = 17.5 inches
Perimeter of a semicircle = πr
= 3.14 (17.5)
= 54.95 inches
So, the best approximation for the perimeter of a semicircle with a diameter of 35 inches is 54.95 inches.
