(Answer: No – not all angles are the same) Is this rhombus a regular quadrilateral? Explain how you know. (Answer: Faces = 6 / Vertices = 8 / Edges = 12)ĥ. (Answer: 1st = isosceles / 2nd = scalene) In each hexagon, is the triangle an equilateral, isosceles or scalene? These two shaded triangles are each inside a regular hexagon. Put your children’s problem-solving skills to the test!ģ. A hexagonal prism has 8 faces, 18 edges and 12 vertices.A pentagonal prism has 7 faces, 15 edges and 10 vertices.A cuboid has 6 faces, 12 edges and 8 vertices.A cube has 6 faces, 12 edges and 8 vertices.A triangular prism has 5 faces, 9 edges and 6 vertices.A cylinder has 2 faces, 1 curved surface and 2 edges.A square-based pyramid has 5 faces, 8 edges and 5 vertices.A tetrahedron, or triangular-based pyramid, has 4 faces, 6 edges and 4 vertices.A cone has 1 face, 1 curved surface, 1 edge and 1 vertex.A hemisphere has 1 face, 1 curved surface and 1 edge.A heptagon or septagon is any shape with 7 sides.A parallelogram has two pairs of parallel lines and opposite equal angles.A trapezoid has exactly one pair of parallel lines.A rhombus has two pairs of parallel lines, as well as equal sides and opposite equal angles.A rectangle has two pairs of parallel straight lines and each angle equals 90°.A kite has two pairs of equal-length sides and the diagonals cross at right-angles.A square is a regular quadrilateral and each angle equals 90°.An isosceles triangle has two sides and two angles that are the same.A scalene triangle is an irregular triangle.A right-angled triangle (or right triangle) is any triangle with one right angle.An equilateral triangle is a regular triangle and each angle equals 60°.A semicircle has 2 sides 1 curved side and 1 straight side.Comparing properties of shapes in a Third Space Learning’s online math lessonīelow are some of the shapes children will need to know, including their properties, such as the number of sides. ![]() For example, if your child’s school follows the TEKS, your child will be introduced to shapes with 11- and 12-sides in the 2nd grade. (Ex: all rectangles have 4 right angles and squares are rectangles, so all squares have four right angles).īased on your child’s state and school curriculum, they may be introduced to topics in a different order or in different grade levels.
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