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 ...

“Why are there 360 degrees in a circle?” A regular reader recently asked me that question. My first response was to say “Because Miss Helland told me so.” Miss Helland was my high school teacher for ...

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 ...

case 1<BR>In 2D coordinate system the sum of the angles of all quadrants=360 degree= 2pi radian<BR>in (x,y) plane<BR>Case 2<BR>In 3D coordinate system (x,y,z) I took 3 possible ...

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 ...

CBSE Class 10 Maths Chapter 12 Important Questions with Answers: This article enlists the important questions from Chapter 12 of CBSE Class 10 i.e Areas Related to Circles. For the candidates ...