The sum of circumference, diameter and radius of a circle is 9.28 cm. The diameter of the circle is () and the area is ()

The sum of circumference, diameter and radius of a circle is 9.28 cm. The diameter of the circle is () and the area is ()

The diameter of a circle is twice the radius
The circumference of the circle is 2 × 3.14 = 6.28 times of the radius
What is the radius of the circle
9.28 ÷ (1 + 2 + 6.28) = 1cm
What is the diameter of the circle
1 × 2 = 2 cm
What is the area of a circle
1 × 1 × 3.14 = 3.14 square centimeter