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### Grade 5 - Mathematics7.8 Polygons

 Polygons: A simple closed figure bound by line segments is called a polygon. They are two dimensional figures. The line segments by which a polygon is bound are called its sides. The sides do not cross each other and exactly two sides meet at every vertex. Polygons with three sides are called triangles. Polygons with four sides are called quadrilaterals. A quadrilateral with two pairs of parallel and equal sides is called a parallelogram. A parallelogram with 4 right angles and 4 sides equal is a square. A parallelogram with 4 right angles and 2 pairs of equal sides is a rectangle. A quadrilateral with only 1 pair of parallel sides is called trapezoid. The diagonals of a parallelogram are not equal. A polygon that has 5 sides is a pentagon. A polygon that has 6 sides is a hexagon. A solid formed by plane figures is a polyhedron. Cube is an example of a polyhedron. Directions: Answer the following questions. Also draw at least five shapes that are polygons and shapes that are not polygons.
 Q 1: A regular triangle is also called anisosceles triangleequilateral triangleright triangle Q 2: How many sides does a hexagon have?1086 Q 3: A normal building most closely resembles which of the following?SphereRectangular PrismSquare PyramidCone Q 4: There are __________ sides on a STOP sign6784 Q 5: An octagon has ______ sides912810 Q 6: If a quadrilateral can be folded so that the two halves can exactly match, it is said to have a line ofdiametersymmetryradius Q 7: A regular polygon has sides of equal length and angles of equal measuretruefalse Q 8: The number of blocks in a 6 x 5 x 7 rectangular prism is183035210 Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!