In this chapter, we will be learning about angles, parallel lines, perpendicular lines, perimeter and area, and volume of a solid. We will start by recognizing and naming different types of angles like right angles, acute angles, and obtuse angles in shapes like rectangles, squares, and triangles. Then, we will learn about parallel lines and perpendicular lines. Next, we will learn how to find the perimeter of polygons with up to eight sides. We will also learn how to find the area of shapes like squares, rectangles, right angle triangles, equilateral triangles, and isosceles triangles using square grids and formulas. Finally, we will learn how to find the volume of cubes and cuboids using cubes and formulas.
• Recognise and name right angle, acute angle and obtuse angle in rectangle, square and triangle
• Recognize and name the parallel lines and perpendicular lines
• Draw parallel lines and perpendicular lines
• Determine the perimeter of polygon up to eight sides
• Determine the area of square, rectangle, right angle triangle, equilateral triangle and isosceles triangle using square grids of 1 square unit and formula
• Determine the volume of cube and cuboid using 1 cubic unit cube and formula
• Solve problems involving space
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