SCIENCE AND MATH CONCEPTS

Class 10 Maths Surface Areas and Volumes NCERT Solutions For Class 10 Maths Chapter 13 Surface Areas and Volumes Exercise 13.1 NCERT Solutions For Class 10 Maths Chapter 13 Surface Areas and Volumes Exercise 13.2 NCERT Solutions For Class 10 Maths Chapter 13 Surface Areas and Volumes Exercise 13.3 NCERT Solutions For Class 10 Maths Chapter 13 Surface Areas and Volumes Exercise 13.4

Question 1. Find the area of the shaded region in the given figure, if PQ = 24 cm, PR = 7 cm and O is the centre of the circle. Solution: Question 2. Find the area of the shaded region in the given figure, ¡f radii of the two concentric circles with centre O are 7 cm and 14 cm respectively and ∠AOC = 40°. Solution: Question 3. Find the area of the shaded region in the given figure, if ABCD is a square of side 14 cm and APD and BPC are semicircles. Solution: Question 4. Find the area of the shaded region in the figure, where a circular arc of radius 6 cm has been drawn with vertex O of an equilateral triangle OAB of side 12 cm as centre. Solution: Question 5. From each corner of a square of side 4 cm a quadrant of a circle of radius 1 cm is cut and also a circle of diameter 2 cm is cut as shown in the figure. Find the area of the remaining portion of the square. Solution: Question 6. In a circular table cover of (he radius 32 cm, a design Is formed leaving an equilìtcral

Question 1. Find the area of a sector of a circle with radius 6 cm if angle of the sector is 60°. Solution: Question 2. Find the area of a quadrant of a circle whose circumference is 22 cm. Solution: Question 3. The length of the minute hand of a clock is 14 cm. Find the area swept by the minute hand in 5 minutes. Solution: Question 4. A chord of a circle of radius 10 cm subtends a right angle at the centre. Find the area of the corresponding: (i) minor segment (ii) major segment (Use π = 3.14) Solution: Question 5. In a circle of radius 21 cm, an arc subtends an angle of 60° at the centre. Find: (i) length of the arc. (ii) area of the sector formed by the arc. (iii) area of the segment formed by the corresponding chord. Solution: Question 6. A chord of a circle of radius 15 cm subtends an angle of 60° at the centre. Find the areas of the corresponding minor and major segments of the circle. (Use π = 3.14 and √3 = 1.73) Solution: Question 7. A