The circumference of a circle = \(\pi d\) or \(2\pi r\). Look at the sector of the circle shown below. To calculate the length of the arc, we need to know what fraction of the circle is shown. To do ...

A technician often has to sketch or design ductwork and the other parts of an HVAC system. Sometimes you have to sketch the room or building you are working with. This means working with lines, angles ...

VO: Ambrose is an apprentice pizza maker at the world famous Grecian Pizza Parlour.He’s taking his new job very seriously. He’s even come in early today, before the pizza parlour is open. It looks ...

Here you get the CBSE Class 10 Mathematics chapter 9, Circles: NCERT Exemplar Problems and Solutions (Part-IIA). This part of the chapter includes solutions to Question Number 1 to 5 from Exercise 9.2 ...

Construct a convex octagon with four right angles. It probably says a lot about me as a teacher that I assign problems like this. I watch as students try to arrange the right angles consecutively.

Here you get the CBSE Class 10 Mathematics chapter 9, Circles: NCERT Exemplar Problems and Solutions (Part-IIIB). This part of the chapter includes solutions to Question Number 6 to 10 from Exercise 9 ...