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Geometry

Lines and Angles G7

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 …

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Congruence of Triangles G7

Place your left palm over your right palm. Now closely observe. All fingers of your left palm are as same as your right palm. Such an exact similarity is referred to as the ‘property of Congruence’ in geometry. The property of congruence can be studied by closely observing different shapes and figures. In this chapter, …

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Practical Geometry – 2 G7

Previously, we had learned how to construct an angle, along with the bisectors. In this chapter, we take you a step further into understanding how geometrical tools can be used to construct geometrical shapes and figures. To begin with, you will be introduced to the concept of a Triangle. Moving forward, you will uncover some …

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Perimeter and Area G7

Can you answer the following questions: How big is the surface of your house? Or how big is our country? In order to understand the surface that is occupied by a specific item, it becomes necessary to find its area. An area of an item is the size of the surface that it has occupied. …

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Symmetry G7

Open a notebook, and carefully observe the right-hand side and the left-hand side of it. You will observe that both parts are exactly the same. We can say they are symmetrical. Now there is a dividing line between the left side and the right side, that’s called the axis of symmetry. If you observe carefully …

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Visualising Solid Shapes G7

Can you tell us the difference between a rectangular drawing and a rectangular box? If you are thinking that both are one and the same, then you are wrong. A rectangular drawing is a 2D shape because it has two important factors – i.e the length and the breadth. Whereas a rectangular box is a …

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Symmetry G6

Take a piece of paper and draw an image of a butterfly. You will definitely draw it in such a way, that both sides of the butterfly will be an exact replica of each other. If you fold one-half of the butterfly on the other, they will exactly overlap each other. Such figures with evenly …

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Practical Geometry G6

Ever wondered why every ice-cream cone is exactly the same in terms of design, length and volume? How do they do it? It’s simple. In Geometry, we use specific tools to design, construct and measure the shapes. In this way, we achieve the exact figure that we desire. In this chapter, we will learn how …

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