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Measurement and Geo
4.MG.1, 4.MG.3, 4.MG.4, 4.MG.5, and 4.MG.6
| Question | Answer |
|---|---|
| What is Area? | Area is the measure of the surface enclosed within a plane figure. It is calculated by counting the number of square units needed to cover the surface. |
| What is the formula(s) for area? | Square: Area = side length × side length Rectangle: Area = length × width |
| What is Perimeter? | Perimeter is the total distance around a plane figure. It is calculated by summing the lengths of all the sides. |
| What is the formula(s) for area? | Square: Perimeter = 4 × side length Rectangle: Perimeter = 2 × (length + width) |
| Point | An exact location in a plane or space with no dimensions. |
| Lines | A collection of points extending infinitely in both directions with no endpoints. |
| Line Segments | A portion of a line with two endpoints and all points between them. |
| Rays | A part of a line that starts at a specific endpoint and extends infinitely in one direction. |
| Angles | ormed by two rays with a common endpoint called the vertex. |
| Vertices | The common endpoint where two rays, line segments, or lines meet to form an angle. |
| Intersecting Lines | Lines that cross each other at exactly one point. |
| Perpendicular Lines | Lines that intersect at a right angle. |
| Parallel Lines | Lines in the same plane that never intersect and are always the same distance apart. |
| Quadrilateral | A polygon with four sides. |
| Parallelogram | A quadrilateral where both pairs of opposite sides are parallel and congruent. |
| Rectangle | A quadrilateral with four right angles, opposite sides that are parallel, and opposite sides that are congruent |
| Rhombus | A quadrilateral with four congruent sides, opposite sides are parallel, and opposite angles are congruent. |
| Square | A special type of rectangle and rhombus with four congruent sides and four right angles. |
| Trapezoid | A quadrilateral with exactly one pair of parallel sides. |
| Congruent Figures | Figures that have the same size and shape. Congruent sides have the same length, and congruent angles have the same measure. |
| Plane Figure | A closed, two-dimensional shape. |
| Solid Figure | A three-dimensional shape with length, width, and height. |
| Vertex | The point where three or more edges meet in a solid figure. |
| Face | A flat surface of a solid figure. |
| Edge | A line segment where two faces of a solid figure intersect. |
| Angle | Formed by two rays with a common endpoint called the vertex. Angles are found where lines or line segments intersect. |
| Cube | A solid figure with six congruent square faces, all edges are the same length. It has eight vertices and 12 edges. |
| Rectangular Prism | A solid figure with six rectangular faces. It has eight vertices and 12 edges. A cube is a special case of a rectangular prism. |
| Sphere | A solid figure where all points are the same distance from the center. |
| Square Pyramid | A solid figure with a square base and four triangular faces that meet at a common vertex. It has five vertices and eight edges. |
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