Refer to the attached document. Step-by-step explanation:
QR is 12, as you establish a proportion: 21/14 = x/8, then cross-multiply to obtain 14x = 168, which you solve by dividing to find x = 12.
Answer:
Kayla is right; the center constitutes a fixed point located at the sphere's core.
Step-by-step explanation:
Kayla is indeed correct, whereas Raymond is mistaken since a point itself cannot represent a radius; a radius is defined as the line segment stretching from the center to the surface.
The center is indeed the stable point positioned at the center of the sphere.