Respuesta :
Area = πr^2
The diameter is twice the area.
The diameter is the width of a circle.
This means the radius is (3/2).
A = π(3/2)^2
A = π(9/4)
A = 9π/4
A = 7.0685834706
A = 7.07
The diameter is twice the area.
The diameter is the width of a circle.
This means the radius is (3/2).
A = π(3/2)^2
A = π(9/4)
A = 9π/4
A = 7.0685834706
A = 7.07
Answer:
The area of a sand dollar that is 3 inches wide is [tex]7.0686 inch^2[/tex]
Step-by-step explanation:
Width of sand dollar's circular body = d = 3 inches
Radius of the sand dollar's circular body = r
[tex]r=\frac{d}{2} = \frac{3 inch}{2}=1.5 inches[/tex]
Area of circle = [tex]\pi r^2[/tex]
So, the area of a sand dollar that is 3 inches wide:
[tex]A=3.14\times (1.5 inch)^2=7.0686 inch^2[/tex]
The area of a sand dollar that is 3 inches wide is [tex]7.0686 inch^2[/tex]