Take a look at a Square or a Reactangle. Do their opposite sides intersect each other? Nope! They don’t! Such lines that do not intersect each other are called as Parallel Lines. Let us try to understand in this lesson, the concept of parallel lines as well as its applications! Let us begin!
Look closely at the minute and the hour hand of the wall clock. You will observe that both these hands make an angle between them. What is the angle? An angle in Geometry is a shape, formed by two lines or rays diverging from a common point. They help us to figure out the degree …
When you look at the objects around you, they all have a specific shape. Some are triangular, some rectangular and so on! The field of mathematics that deals with shapes, sizes, the position of figures, and properties, is called ‘Geometry’. The world of geometry extends wider. A simple triangle has different types, whereas a rectangle …
What is one common thing between a right-angled triangle and an isosceles triangle? Both of these figures are triangles! The concept of similarity deals with the physical appearance of any figure. If both the figures/shapes look same, although one has a comparatively larger area than the other, then the figures are called as similar structures. …
Imagine you have a sports event at your school. To conduct the running race, the rectangular school ground is divided into ten columns, each of 1m. Each column is separated by its adjacent ones with a line made up of chalk powder. On similar lines, there are 10 rows made, each of 1m, to see …
We have come across many shapes such as circle, square, triangle and the list goes on! To our surprise, the triangle holds a special place in maths. And why is that so? That’s because a complete branch of mathematics called ‘Trigonometry’ is committed to analysing triangles. In fact, the word ‘Trigonometry’ itself gives us an …
Imagine you are constructing a bridge. The instructions given for the construction should be followed precisely. Lack of understanding may result in the bridge to collapse. So, measurements and accuracy play a key role in any construction. On similar lines, when it comes to construction in mathematics, it holds the same strategy. Firstly, we should …
Imagine a round cake. What is its area? By using the formula that we have studied in the lower grades, we can find the answer easily. But what if we tell you to to find the area of one slice of the cake? Is there a way to find its area? One slice of the …
Have you ever inspected an ice-cream? It reveals two solid objects, one a hemispherical scoop of delightful ice-cream, and second, the conical part that is a cone. So, this ice-cream is a combination of a cone and a hemisphere. What if we tell you to find out the volume and surface area of that entire …
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 …
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