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Class 10 Maths Chapter 12 Areas Related to Circles Ex 12.2

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 ...

Class 10 Maths Chapter 12 Areas Related to Circles Ex 12.1

Question 1. The radii of the two circles are 19 cm and 9 cm respectively. Find the radius of the circle which has a circumference equal to the sum of the circumferences of the two circles. Solution: Question 2. The radii of two circles are 8 cm and 6 cm respectively. Find the radius of the circle having area equal to the sum of the areas of the two circles. Solution: Question 3. The given figure depicts an archery target marked with its five scoring regions from the center outwards as Gold, Red, Blue, Black, and White. The diameter of the region representing Gold score is 21 cm and each of the other bands is 10.5 cm wide. Find the area of each of the five scoring regions. Solution: Question 4. The wheels of a car are of diameter 80 cm each. How many complete revolutions does each wheel make in 10 minutes when the car is travelling at a speed of 66 km per hour? Solution: Question 5. Tick the correct answer in the following and justify your choice: If the perimeter and...

Class 9 Maths Chapter 9 Areas of Parallelograms and Triangles

Class 9 Maths Areas of Parallelograms and Triangles Ex 9.1 Maths Chapter 9 Areas of Parallelograms and Triangles Ex 9.2 Areas of Parallelograms and Triangles Ex 9.2 Class 9 Maths Areas of Parallelograms and Triangles Ex 9.2 More Resources for CBSE Class 9 Class 9 Maths Areas of Parallelograms and Triangles Ex 9.3 More Resources for CBSE Class 9