Answer:
1. Center = S
2. Radius = SM
3. Diameter = MN
4. Exterior point = B
Explanation:
We have been given an image of a sphere. We are asked to match each term with its correct name using given diagram.
1. Center.
We can see that the center of our given sphere is marked by point S, therefore, S is center of our given sphere.
2. Radius
We know that radius of sphere is length of segment that connects center of sphere to end point on sphere.
We can see that S is center of circle and points N and M are on two ends of given sphere, so segment SN and SM are radii of the sphere.
Since we have given only segment SM, therefore, SM is the radius of sphere.
3. Diameter
We know that diameter of sphere is segment that passes through center and joins two ens points on sphere.
We can see that segment MN passes through center, therefore, MN is diameter of sphere.
4. Exterior point
We can see that point B lies outside of sphere, therefore, pint B is an exterior point.