Answer:
615.44 mm²
Explanation:
Before finding the area of the circle, first, let us find the radius of the circle.
Given that,
diameter ⇒ 28 mm
Therefore,
d = 2r
28 = 2r
Divide both sides by 2.
14mm = radius
And now, let us find the area.
The formula to find the area of the circle is :
Area = π r²
Let us solve now.
Area = π r²
= 3.14 × 14 × 14
= 43.96 × 14
= 615.44 mm²