Answer: 7 Inches
Step-by-step explanation:
Diameter = 7 inches
Area of circle is 38.46 inches²
Step-by-step explanation:
Given :The radius of a circle is 3.5 inches.
We have to find its diameter and area.
Since diameter is twice of radius.
So radius = 3.5 inches
Diameter = 2× 3.5 inches = 7 inches
Area of circle =
Substitute, r = 3.5
Area of circle = (3.5)
Simplify , we have,
Area of circle = 12.25
Using π = 3.14
We have,
Area of circle = 38.465
Thus, Area of circle is 38.46 inches²