Answer:
The perimeter is 55.68 cm.
Step-by-step explanation:
We have 2 sides as 9 cm.
We have the diameter as 12 cm. So, radius = 6 cm
Circumference of complete circle is = [tex]2\pi r[/tex] So, circumference of half circle will be [tex]\pi r[/tex]
Now the perimeter of the whole figure will be given as:
[tex]2(3.14\times6)+2(9)[/tex]
= [tex]2(18.84)+18[/tex]
= [tex]37.68+18[/tex]
= 55.68 cm
Therefore, the perimeter is 55.68 cm.
