Answer:
1. Triangle
A triangle has three sides, three vertices, and three angles. The sum of the three interior angles of a triangle is always 180°. The sum of the length of two sides of a triangle is always greater than the length of the third side.
2. Quadlirateral
In geometry, a quadrilateral can be defined as a closed, two-dimensional shape which has four straight sides. The polygon has four vertices or corners. We can find the shape of quadrilaterals in various things around us, like in a chess board, a deck of cards, a kite, a tub of popcorn, a sign board and in an arrow.
3. Octagon
An octagon is a polygon made up of 8 sides. It has eight angles. Octagon = Octa + gon where octa means eight and gon means sides.
4. Hexagon
A regular hexagon 2D geometric polygon that has six sides that are equal in length and six angles that are equal in size. It has no curved sides and all the lines are closed. The internal angles of a regular hexagon add up to 720 degrees.
5. Pentagon
A pentagon is a polygon with 5 sides and 5 angles. The word “pentagon” is made up of two words, namely Penta and Gonia, which means five angles. All the sides of a pentagon meet with each other end to end to form a shape.
Step-by-step explanation:
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