Скачать или смотреть Class 10 Maths Chapter 12 - Ex 12.2 (Q 6, 7, 8 & 9) | Area Related to Circles

NCERT Solutions for Class 10 Maths - Chapter 12, Area Related to Circles. In this video, we will study ‘Area Related to Circles’.

In this chapter, we will study circles, radius, area of a circle, the circumference of a circle, area of a sector of a circle, a segment of a circle, length of an arc of a sector.

Circle: A circle is a set of points an equal distance from one point called the center.

This is the Exercise 12.2 NCERT Maths Class 10 Chapter 12. hereafter we will cover Chapter 12’s Ex 12.2 (Part III) and Ex 12.3.

In this video, we have covered Exercise 12.2 (Part II) and the following questions from NCERT Class 10 mathematics, Chapter 12, Exercise 12.2

Question 6: A chord of a circle of radius 15 cm subtends an angle of 60° at the center. Find the areas of the corresponding minor and major segments of the circle.

Question 7: A chord of a circle of radius 12 cm subtends an angle of 120° at the center. Find the area of the corresponding segment of the circle.

Question 8: A horse is tied to a peg at one corner of a square-shaped grass field of side 15 m by means of a 5 m long rope. Find
(i) the area of that part of the field in which the horse can graze.
(ii) the increase in the grazing area if the rope were 10 m long instead of 5 m.

Question 9: A brooch is made with silver wire in the form of a circle with a diameter of 35 mm. The wire is also used in making 5 diameters which divide the circle into 10 equal sectors. Find:
(i) the total length of the silver wire required.
(ii) The area of each sector of the brooch.

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