Answer:
40.56 ft
Step-by-step explanation:
The perimeter of a circle is equivalent to [tex]2\pi r[/tex], where r = radius. Therefore, the perimeter of a semicircle should be [tex]\frac{2\pi r}{2}[/tex]
In this case, we're given the diameter of the semicircle as 8, so we divide the diameter by 2 and get the radius as 4. Now, let's solve the circumference of the semicircle.
- [tex]\frac{2*3.14*4}{2}[/tex]
- [tex]\frac{6.28*4}{2}[/tex]
- [tex]\frac{25.12}{2}[/tex]
- [tex]12.56[/tex]
Now, we're given the lengths of the rectangle as 8, 10, and 10. The perimeter of the rectangle (excluding the inner side) is 28.
28 + 12.56 = 40.56
Therefore, the perimeter is 40.56 ft.
Have a lovely rest of your day/night, and good luck with your assignments! ♡
