In mathematics, various shapes are either 1-dimensional, 2-dimensional or 3-dimensional. In the previous grades, you might have learnt about some of them consisting of lines, squares, cubes and many more. In this chapter, we will learn in detail about lines and angles. We will explore different types of angles, like the adjacent and complementary angles. …
Triangles are polygons with least number of sides, i.e three. Interestingly you can divide any complex polygon into several triangles. This method is often used to calculate the area of a complex polygon by breaking it into triangles, thus reducing the complexity of calculation. Watch our videos to learn more about triangle, right-angled triangle, isosceles …
Shapes like squares, rectangles, rhombus, parallelogram are all Quadrilaterals. And what is a quadrilateral? We have already studied this in the previous grades. Quadrilaterals are the shapes that have 4 sides, 4 angles, and 4 vertices. Want to know what conditions will categorize a quadrilateral as trapezium or a rhombus? Follow our videos to explore …
Wondering why this chapter is named as the area of parallelogram and triangle? What is the relation between them? To your surprise, a parallelogram is made from at least two triangles! Does it help us in any way? It surely does. Based on this, we can easily find the area of a parallelogram. There are …
The wheel is considered as one of the best inventions made by the humankind. As you may know, the wheel is circular in shape. So it was the concept of a circle which is making our life easier in every field. Without that, we won’t have been reaching to great distances. If you have a …
Things look far different in real life as against their pictorial depictions. It is because pictorial depictions, make us understand the architecture of any design or structure in a specific way. To understand the architecture, it is necessary for us to be equipped with the knowledge of using specific tools and constructing the shapes. In …
In our previous grades, we learned the formula to calculate the area of the triangle. Can you recall that? ½ (Base x Height). Let’s consider a triangle. The sides of the triangle measures, 4 cm, 3 cm and 6 cm. Now, can you calculate the area? By using the above formula, we cannot. So what …
Can you tell what is the difference between the surface area and the total surface area of any shape? Both sound the same, right? So why do we have two different formulae for these? You will know the answers to these questions yourself, once you start observing shapes and figures closely. In this chapter, we …
What if we ask you to find numbers, which when added gives us 29, and 100 when multiplied? Seems difficult? How do any numbers add up to 29 and at the same time be equal to 100 when multiplied? Now, wait for it. Take the numbers 25 and 4. When we add these numbers, we …
Collection of data is done on a large scale. All the collected data is depicted in the simplest form, such that, the information can be understood quickly just by taking a glance at it. What do you think this simplest form of representing data can be? Here comes ‘Statistics’ into the picture! It is a …
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