![]() ![]() ![]() GRADE 7 Grade 7 Mathematics Term 1: Space and Shape - Geometry of 2D shapesĥ Name: Geometry of 2D Shapes: Answer Sheet (1) Answer these questions in your workbook: 1. ![]() j) A scalene triangle is a triangle with three equal sides. If the sentence is false, change it to make the sentence true. State wether the following statements (sentences are true or false). Given that the following pairs of shapes are congruent, work out what the missing sides are: 11. ![]() Grade 7 Mathematics Term 1: Space and Shape - Geometry of 2D shapes GRADE 7 i) Triangle A with angles: 90 65 and 25 Triangle B with angles: 65 90 and 25 j) A rhombus with one side equal to 50mm, 2 angles equal to 45 and two angles equal to 135 AND a parallelogram with all four sides equal to 50mm, with an angle equal to 135 and an angle equal to Given that the following pairs of shapes are similar, work out what the missing angles are: A BĤ Geometry of 2D Shapes (4) 10. Look at the pairs of shapes: Say if the pairs are similar, congruent or neither. Match the columns: Which shape in column A is similar to the shape in column B? A. What do these words mean? a) Similarity b) Congruency 7. Label this circle with the correct names from the box given below: radius circumference diameter chord segment sector centre Radius circumference diameter chord Segment sector centre Grade 7 Mathematics Term 1: Space and Shape - Geometry of 2D shapes 6. Write the name for each of these shapes in your class workbook: Grade 7 Mathematics Term 1: Space and Shape - Geometry of 2D shapes GRADE 7Ģ Geometry of 2D Shapes (2) GRADE 7 5. What makes each of these quadrilaterals special? a) square b) kite c) parallelogram d) rectangle e) rhombus f) trapezium 3. Give the definitions of each of the following shapes and draw an example of each one: a) equilateral triangle b) isosceles triangle c) scalene triangle d) right-angled triangle e) parallel f) perpendicular 2. Polygon: A polygon is a 2D shape with straight sides.1 Name: Geometry of 2D Shapes Answer these questions in your class workbook: 1. Kite: A quadrilateral with two pairs of sides that are same length. One pair of diagonally opposite sides is equal. Parallelogram: A quadrilateral with both pairs of opposite sides parallel and both pairs an equal length. Trapezium: A quadrilateral with one pair of parallel sides. (Differs from a square in that angles are NOT 90˚). Rhombus: A quadrilateral with both pairs or opposite sides parallel and all sides equal length. Right-angled triangle: A triangle that has a right angle. Scalene triangle: A triangle with 3 sides that are all unequal. Isosceles triangle: A triangle with 2 equal sides. illustrate and name parts of circles, including radius, diameter and circumference, and know that diameter is twice the radiusĮquilateral triangle: A triangle with 3 equal sides and 3 equal angles.find unknown angles in triangles, quadrilaterals and regular polygons.recognise, describe and build simple 3D shapes, including making nets.draw 2D shapes using given dimensions and angles.classify 2D and 3D shapes by talking about parallel and perpendicular edges and faces.distinguish between regular and irregular polygons.find missing lengths and angles of rectangles.estimate and compare acute, obtuse and reflex angles.identify 3D shapes from 2D representations.identify lines of symmetry in 2D shapes.identify acute and obtuse angles and compare and order angles.compare quadrilaterals and triangles, based on their properties and sizes.identify horizontal and vertical lines and pairs of perpendicular and parallel lines.identify right angles and know that two make a half-turn, three make a three-quarter turn and four a complete turn.understand that a right angle is a quarter turn and know whether the turn is clockwise or anti-clockwise.compare and sort common 2D and 3D shapes.identify 2D shapes on the surface of 3D shapes.identify and describe 3D shapes, including the number of edges, vertices and faces.identify and describe the properties of 2D shapes, including the symmetry and line symmetry.sort, make and describe common 2D and 3D shapes.3D shapes including cubes, cuboids, pyramids and spheres.2D shapes including rectangles, squares, circle and triangles.In Year 1, children need to be able to recognise and name: Children are expected to be able to name these shapes, and also discuss the properties of these shapes. Teachers will often talk about the fact that 2D shapes are 'flat' and 3D shapes are not. The first thing they need to learn is the difference between 2D and 3D shapes. Throughout their time at primary school, children will be taught about various 2D (two-dimensional) and 3D (three-dimensional) shapes. ![]()
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