Double its radius
Many shapes circle, equalateral triangle, square, and all normal shapes from then on such as pentagon and hexagon etc.
It is 1/pi times the circumference. A triangle with the diameter as its hypotenuse and the third point anywhere on the circle is always a right-angled triangle. A quadrilateral with all four corners on a circle is a cyclic quadrilateral. If one of its diagonals is a diameter of the circle, it has two right angles.
The diameter is the distance across the centre of the circle.
No, a triangle is defined by its three sides and/or its angels. The diameter is a characteristic of a circle.
yes. the leg of the triangle has to be formed different because of the circle
Yes.
Keep compass the same size. Draw circle one. Draw circle two with the center on the edge of circle one. Draw circle three centered on one of the points of intersection between circle one and two. Now the area in between the all three circles where the points of circles intersect should join to make an equalateral triangle. Connect with your straight edge.
The length of the circle's diameter
It could be anything. Just because it has a triangle in it doesn't in any way determine its diameter.
yes ...all the angles of the triangle must touch a spot on the circle..
A circle, or a scalene triangle.
If a triangle is drawn in a circle with a diameter as the base of the triangle, then the angle opposite that diameter is a right angle. This is an extension of the theorem that the angle which an arc of a circle subtends at the centre of a circle is twice the angle which the arc subtends at the circumference. In the case of a diameter, then the angle subtended at the centre is 180° and thus the angle at the circumference is 90°.