The sum of the measures of the angles in a figure having 9 sides is 20 degrees each angle.
Cjic
A triangle whose sides are curved outwards.
The figure which is always a rectangle is a SQUARE having four straight sides and four right angles.
If the sides are all equal, and opposite sides are parallel, then the angles are all equal (72º) and it is a 'regular hexagon'. A six sided plane figure is called a hexagon, as "hex" means "six."
A closed figure having three sides and three angles
A triangle is a geometric figure that is made of three line segments. It is a closed figure and has three angles.
The sum of the measures of the angles in a figure having 9 sides is 20 degrees each angle.
Closed figure; five sides; five angles.
If you mean EQUAL sides and angles, than an equilateral triangle.
A nonagon. It also has nine sides.
In a closed figure of n sides the internal angles total (2n - 4) right angles, so in this case the sum is (12 - 4) x 90 degrees, ie 720 degrees.
Polygon
Jeeme
A hexagon is any polygon (closed figure with straight sides) with six (6) sides and angles.
A square...?
The sum of the measures of the angles in a figure having 9 sides is 20 degrees each angle.