What is the radius of smaller circle?

We want to introduce a smaller circle, (of radius r and with its center at S) in the space PTQR, such that it touches the tangents PT and QT and the bigger circle at R. We have OPTQ as a square of side, 1. Hence the radius of the smaller circle is (2^0.5–1)^2 or 0.171572875.

What is a circle of radius 1?

In mathematics, a unit circle is a circle of unit radius—that is, a radius of 1. Frequently, especially in trigonometry, the unit circle is the circle of radius 1 centered at the origin (0, 0) in the Cartesian coordinate system in the Euclidean plane.

What is the radius of a circle if the diameter is 1 2?

If you were asked to find the radius instead of the diameter, you would simply divide 7 feet by 2 because the radius is one-half the measure of the diameter. The radius of the circle is 3.5 feet.

Why is the radius 1?

This is by definition of the word “unit”. “Unit” means “one/single/individual”. Hence by definition, “unit circle” is taken to mean “a circle of radius 1”.

Is the radius always 1?

The radius of a circle is the length of the line from the center to any point on its edge. The plural form is radii (pronounced “ray-dee-eye”). In the figure above, drag the orange dot around and see that the radius is always constant at any point on the circle….Radius of a circle.

What is the radius of 1 1 2 circle?

Radius would be 11/4 inches.

What diameter is 2inch?

2 inches is equal to 5.08 centimeters or 50.8 millimeters.

Is the unit circle always 1?

The unit circle is a circle with a radius of 1. This means that for any straight line drawn from the center point of the circle to any point along the edge of the circle, the length of that line will always equal 1.

What is the radius of 1 1 2 diameter?