What shape is being described? Write your answer. 1. A shape with no sides and no corners. 2. This shape has 2 pairs of equal sides and 4 corners. 3. A ______ has 3 sides and 3 corners. 4. A semi-circle is also called a ______. 5. A shape with 4 equal sides and 4 corners. 6. Half of a half circle is called a ______.
Answer (1)
A shape with no sides and no corners is a circle. In geometry, circles are the simplest closed curves and have a constant distance from the center point to any point on the edge, which is called the radius.
This shape has 2 pairs of equal sides and 4 corners is a rectangle. A rectangle is a quadrilateral with opposite sides that are equal in length and each corner is a right angle.
A shape that has 3 sides and 3 corners is a triangle. Triangles are polygons with three edges and three vertices. The sum of the interior angles of a triangle is always 180 degrees.
A semi-circle is also called a semicircular arc and represents half of a circle. It is a 2D geometric shape formed by dividing a circle into two equal parts.
A shape with 4 equal sides and 4 corners is a square. A square is a special case of a rectangle where all sides have equal length and all angles are right angles (90 degrees).
Half of a half circle is called a quadrant or quarter circle. A quadrant is a quarter of a circle and represents one-fourth of a complete circular shape.
