A triangle.
A hexahedron is a three-dimensional geometric shape having six sides; a hexagon is a two-dimensional six-sided shape.
A pentagon has fives sides, or if you mean a three dimensional shape, a pyramid has five sides, four triangular and one square.
Any geometric shape that has more than three sides.
A geometric shape that has 11 sides is called a "hendecagon" or "undecagon." Both terms are acceptable.
An octagon has 8 sides.
Octagon
The geometric shape that has four unequal sides is called a trapezium. It is also known as a general irregular quadrilateral.
Yes and it has 3 sides.
If you have the length of each of the three sides of a triangle, you can find the perimeter of (the distance around) the triangle by adding the length of the sides. Their sum will be the perimeter of this geometric shape.
A geometric shape with only one set of parallel sides is a trapezoid.
The Earth is NOT a geometric shape because the Earth is not bounded; meaning it does not have sides or measurable depth, height, or width.
a rectangle