NCERT Solutions Class 9 Maths Chapter 3 Coordinate Geometry Exercise 3.2 Introduction: In this exercise/article we will learn about Coordinate Geometry. The horizontal line X’ X called the X-axis and the vertical line Y’ Y is called the Y-axis. The point where X’ X and Y’ Y cross is called the origin, and is denoted […]
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NCERT Solutions Class 9 Maths Chapter 10 Heron’s Formula Introduction: In this chapter we will learn about Heron’s Formula. You have studied the following points : Area of a triangle with its sides as a, b and c is calculated by using Heron’s Formula, stated as Area of a triangle = \(\displaystyle \sqrt{{s\,(\,s\,-\,a\,)\,(\,s\,-\,b\,)\,(\,s\,-\,c\,)}}\) where
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NCERT Solutions Class 9 Maths Chapter 10 Heron’s Formula Exercise 10.1 Introduction: In this exercise/article we will learn about Heron’s Formula. We know you have studied in earlier classes about area of triangle and perimeter but in this chapter different types of formulae you will learn in the chapter. Perimeter of the triangle =
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NCERT Solutions Class 9 Maths Chapter 13 Surface area and Volume Introduction : In this chapter we will learn about Surface Area And Volume. It would be interesting to see what happens if we cut out many of these plane figures of the same shape and size from cardboard sheet and stack them up
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NCERT Solutions Class 9 Maths Chapter 13 Surface area and Volume Exercise 13.6 Introduction: In this exercise/article we will learn about Surface Area And Volume. Volume of a cylinder . Just as a cuboid is built up with rectangles of the same size, we have seen that a right circular cylinder can be built
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NCERT Solutions Class 9 Maths Chapter 13 Surface area and Volume Exercise 13.8 Introduction: In this exercise/article we will learn about Surface Area And Volume. Volume of sphere and hemisphere . Since a hemisphere is half of a sphere. Let us see how to go about measuring the volume of a sphere. First, take
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NCERT Solutions Class 9 Maths Chapter 13 Surface area and Volume Exercise 13.7 Introduction: In this exercise/article we will learn about Surface Area And Volume. Volume of a right circular cone. Try to make a hollow cylinder and a hollow cone like this with the same base radius and the same height. Then, we
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NCERT Solutions Class 9 Maths Chapter 13 Surface area and Volume Exercise 13.5 Introduction: In this exercise/article we will learn about Surface Area And Volume. Volume of cuboid and cube .If an object is solid, then the space occupied by such an object is measured, and it termed the Volume of the object. On
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NCERT Solutions Class 9 Maths Chapter 13 Surface area and Volume Exercise 13.4 Introduction: In this exercise/article we will learn about Surface Area And Volume. Surface area of a sphere. You can say ,because a circle is a plan closed figure whose every point lies at a constant distance (called radius) from a fixed
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NCERT Solutions Class 9 Maths Chapter 13 Surface area and Volume Exercise 13.3 Introduction: In this exercise/article we will learn about Surface Area And Volume. Surface area of a Right Circular Cone, Curved surface area of a cone and total surface area of cone. So far, we have been generating solids by stacking up congruent
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