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Category Archives: Class 9

Weight is a measure of force, whereas mass is a measure of inertia. Many people use these two words interchangeably. This, however, is not the… Read More
RD Sharma Solutions for class 9 provides vast knowledge about the concepts through the chapter-wise solutions. These solutions help to solve problems of higher difficulty… Read More
It is important to understand that when you toss a ball against a wall, the ball exerts power on the wall. Similarly, the wall exerts… Read More
Statistics is the study of data collection, analysis, perception, introduction, and organization. It is a method of gathering and summarizing results. This has a wide… Read More
Algebra is a branch of mathematics that deals with number theory, geometry, and analysis. It is one of the oldest branches in the history of… Read More
Mensuration is a branch of mathematics concerned with the calculation of geometric figures and their parameters such as weight, volume, form, surface area, lateral surface… Read More
Geometry is the branch of mathematics that deals with the forms, angles, measurements, and proportions of ordinary objects. There are two-dimensional forms and three-dimensional shapes… Read More
Calculus is a subset of mathematics concerned with the study of continuous transition. Calculus is also known as infinitesimal calculus or “infinite calculus.” The analysis… Read More
Hipparchus, a Greek mathematician, introduced the idea of trigonometry, which is one of the most important branches of mathematics in history. In this section, we’ll… Read More
Probability denotes the possibility of anything happening. It is a mathematical branch that deals with the occurrence of a random event. The value ranges from… Read More
Assume a fast truck collides with a stopped automobile, causing the automobile to begin moving. What exactly is going on behind the scenes? In this… Read More
Without sound life is a little tough, isn’t it? Like imagine watching a horror movie without sound you will realize that the scary movie becomes… Read More
Vibration or noise that passes through some medium is referred to as sound. It travels by moving energy from one molecule to the next and… Read More
Question 1. Draw an angle and label it as ∠BAC. Construct another angle, equal to ∠BAC   Solution: Steps of construction: 1. Draw any ∠BAC… Read More
Question 1. Construct a Δ ABC in which BC = 3.6 cm, AB + AC = 4.8 cm and ∠B = 60°. Solution: Steps of… Read More