Respuesta :
Answer:
The perimeter of the figure is [tex]60.84\ m[/tex]
Step-by-step explanation:
we know that
The perimeter of the figure is equal to the perimeter of a rectangle plus the circumference of a semicircle minus the diameter of the circle
so
Find the perimeter of the rectangle
The perimeter of the rectangle is equal to
[tex]P=2(L+W)[/tex]
substitute the values
[tex]P=2(15+12)=54\ m[/tex]
Find the circumference of a semicircle
The circumference of a semicircle is equal to
[tex]C=\pi r[/tex]
substitute the value of r
[tex]r=12/2=6\ m[/tex] -----> the radius is half the diameter
[tex]C=(3.14)(6)=18.84\ m[/tex]
Find the perimeter of the figure
[tex]54\ m+18.84\ m-12\ m=60.84\ m[/tex]