Question

The diameter of a semicircle is 8 miles. What is the semicircle's perimeter? Use 3.14 for ​.

Answer 1

Answer:

Circumference of the semicircle$=12.56 miles$

Step-by-step explanation:

Diameter of the semicircle= $8 miles$

Radius of the semicircle=$8/2=4 miles$

Perimeter of a circle or semicircle is called its Circumference:

Circumference of a circle= $2*\pi *r$

   Circumference of a semicircle= $\frac{2*\pi *r}{2}=\pi *r$

As,   $\pi =\frac{22}{7}=3.14$

Putting the values in the formula of the circumference of the semicircle:

Circumference of the semicircle= $3.14*4$

                                               $=12.56 miles$

The Circumference of the semicircle with the radius of 4 miles $=12.56 miles$

                                           

Answer 2

Answer:

41.13 cm

Step-by-step explanation:

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