if the diameter of a circle is 1.3*10power -12, what is the radius?

Diameter = 1.3 * 10^-12.

Radius = (1.3 * 10^-12)/2 =
0.65 * 10^-12 = 6.5 * 10^-13.

Thx!!

To find the radius of a circle when given the diameter, you can use the formula:

Radius = Diameter / 2

In this case, the diameter is given as 1.3 * 10^(-12). To calculate the radius, divide the diameter by 2:

Radius = (1.3 * 10^(-12)) / 2

To simplify the calculation, you can convert the diameter into standard form by moving the decimal point 12 places to the left:

Radius = 1.3 * 10^(-12) / 2

Now, divide 1.3 by 2:

Radius = 0.65 * 10^(-12)

Since 0.65 is the final result, there is no need to write it in scientific notation. Therefore, the radius of the circle is approximately 0.65.