Yes
That is the definition of the incenter; it is the center of the inscribed circle.
The distance from the center of a circle to any point on the circle is called the radius of the circle. The radius is a line segment that starts at the center of the circle and ends at any point on the circle. It is always a straight line and is always perpendicular to the circumference of the circle. The radius is half the diameter of the circle, which is the distance across the circle through the center. The diameter of a circle is always twice the length of the radius. My recommendation ʜᴛᴛᴘꜱ://ᴡᴡᴡ.ᴅɪɢɪꜱᴛᴏʀᴇ24.ᴄᴏᴍ/ʀᴇᴅɪʀ/372576/ꜱᴀɪᴋɪʀᴀɴ21ᴍ/
The radius is always at a fixed, unchanging distance from the center of a circle to all the surrounding points.
That's a chord. The longest possible chord is one that passes throughthe center of the circle. That one is called a "diameter" of the circle.
No. Every circle on the sphere whose center is also the center of the sphere is a great circle. If the circle's center is not also the center of the sphere, then the circle is a small circle.
the set of points whose distance from the center of the circle is less than that of the radius.
The set points whose distance from the center of the circle that is less than the radius. A disk.
always.
That is the definition of the incenter; it is the center of the inscribed circle.
Yes, a cord that is a diameter always passes through the center of a circle. And it's also the longest cord of that circle.
The distance from the center of a circle to any point on the circle is called the radius of the circle. The radius is a line segment that starts at the center of the circle and ends at any point on the circle. It is always a straight line and is always perpendicular to the circumference of the circle. The radius is half the diameter of the circle, which is the distance across the circle through the center. The diameter of a circle is always twice the length of the radius. My recommendation ʜᴛᴛᴘꜱ://ᴡᴡᴡ.ᴅɪɢɪꜱᴛᴏʀᴇ24.ᴄᴏᴍ/ʀᴇᴅɪʀ/372576/ꜱᴀɪᴋɪʀᴀɴ21ᴍ/
The diameter of a circle is a circle's largest chord.
The radius is always at a fixed, unchanging distance from the center of a circle to all the surrounding points.
It will always lie on a diameter.
Diameter
Always
The diameter ALWAYS passes through the center of a circle. If it stopped at the center point, it would be a radius, and if it didn't do either, it would be chord.