Find area of circle with diameter of 10.2 cm (round to tenth and put units)
The radius of a circle is half of its diameter. So, the radius of a circle with a diameter of 10.2 cm would be 10.2 cm / 2 = 5.1 cm.
The formula to find the area of a circle is A = πr^2, where A represents the area and r represents the radius.
Plugging in the values, we have A = π(5.1 cm)^2.
Calculating this, we get A ≈ 81.37 cm^2.
Rounding to the nearest tenth, the area of the circle is 81.4 cm^2.