Answer to part 1 = Oblong (ellipsoidal rectangle)
Answer to part 2 - possibly egg-shaped? Probably still oblong though.
The radius is half the diameter.
The circle's diameter
When a circle is folded along its diameter, it creates two congruent halves or semicircles.
-6
These are chords of a circle. If the chord passes through the centre of the circle it is the longest possible chord, divides the circle into two semicircles and is called a diameter.
Its diameter
The radius is half the diameter.
The circle's diameter
The diameter in the line through the circle that defines the 2 semicircles created.
It would divide the circle into two semicircles.
When a circle is folded along its diameter, it creates two congruent halves or semicircles.
Oval = 2 semicircles connected with two parallel lines which are spaced by the diameter of the semicircle. Circumf. = (Pi x 15) + (2*15) = 15 Pi + 30 = 77.124 (to nearest 3rd decimal). Please note that an oval is not an ellipse.
-6
These are chords of a circle. If the chord passes through the centre of the circle it is the longest possible chord, divides the circle into two semicircles and is called a diameter.
So you have a rectangular field with the two ends semicircles? The rectangular area is 95 yards by 49 yards = 4655 square yards The circular part is pi x diameter squared /4 = 3.14x49x49/4 = 1884.785 sq yds Total area is 1884.785 + 4655 = 6539.785 sq yds At cost of 0.08 per sq yd that is .08 x 6539.785 = $523.18
There is no single diameter - there are steel rods of different diameters for different uses.
the diameter mutliplied by pi is the circumference. From a different view the circumference divided by diameter is pi.