The diagram shows a major sector, AOB, of a circle. The sector angle is 240° and the radius is 12 cm скачать в хорошем качестве

The diagram shows a major sector, AOB, of a circle. The sector angle is 240° and the radius is 12 cm

The question is referred from CIE IGCSE 0580 Mathematics Non-Calculator Extended Paper 22October November 2025, (0580/22/O/N/25), 0580 w25 qp 22 for educational purpose only. ------------------------------------------------------------------------------------------------------------------- Question : The diagram shows a major sector, AOB, of a circle. The sector angle is 240° and the radius is 12 cm. (a) Show that the length of the major arc AB is 16𝜋 cm. [1m] (b) OA is joined to OB to form a cone. Work out the volume of the cone. Give your answer in the form (𝑎√𝑏)𝜋/ 3 where a is an integer and b is a prime number. [6m] -------------------------------------------------------------------------------------------------------------------- We’ll break down: ✅ How to find the arc length of a sector ✅ How to find the radius of circular base of a cone ✅ How to find the perpendicular height of the cone ✅ How to find the volume of the cone. This question tests your skills in finding the arc length of a major sector and volume of the cone— a must-know Mensuration topic for IGCSE Maths success. 📌 Perfect for students revising IGCSE 0580 Extended or Core paper and anyone aiming to boost exam confidence. 🔔 Don’t forget to like, share, and subscribe for more IGCSE Maths past paper solutions, tips, and tricks.