What’s the exact radius of a circle with the circumference of 42 meters

Me asap! what is the slope of this line? enter your answer in the box.

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?

Once george got to know adam, they found that they really liked each other. this is an example of what factor in friendship