Acute angle - 90°Less than 90°, Right angle - 90°, Obtuse angle - 180°More than 90° but less than 180°, Straight angle - 180°, Reflex angle - More than 180°, Parallel lines - Lines that never meet, Perpendicular lines - Lines that form a right angle, Intersecting lines - Lines that meet at a point, Horizontal line - Runs left to right, Vertical line - Runs up and down, Cube - 8 vertices, 12 edges, 6 square faces, Cuboid - 6 rectangular faces, Sphere - 1 curved surface, no faces, Net of a cone - 1 circle and 1 sector, Net of a pyramid - 1 square and 4 triangles,

6. Geometry

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