1. The point F is the _______.   principal axis   pole   principal focus   Hint Half-n-half Clue   2. The mirror shown is _______ in shape.   convex   concave   3. The distance CP is the _______.   center of curvature   focal length   radius of curvature   Half-n-half Clue   4. The point P is the _______.   principal axis   pole   principal focus   Half-n-half Clue   5. The distance FP is the _______.   focal length   radius of curvature   center of curvature   Half-n-half Clue   6. The point C is the _______.   center of curvature   pole   principal focus   Half-n-half Clue