Are you looking for DAV Maths Solutions for class 7 then you are in right place, we have discussed the solution of the Secondary Mathematics book which is followed in all DAV School. Solutions are given below with proper Explanation please bookmark our website for further update !! All the Best !!
Chapter 11 Worksheet 6 | Perimeter and Area | Class-7 DAV Secondary Mathematics
Unit 11 Worksheet 6 || Perimeter and Area
1. Find the area of a circle of diameter 8.4 m.
Answer 1:
2. The circumference of a circle is 17.6 cm. Find the area of the circle.
Answer 2:
3. The area of a circular lawn is 154 m2, find its circumference.
Answer 3:
4. A circular plot is of radius 77 m. Find its value at 175 per square metre.
Answer 4:
5. The diameters of two silver discs are in the ratio 2 : 3. What will be the ratio of their areas?
Answer 5:
6. If the perimeter of a semi-circular park is 72 m, find its area and radius.
Answer 6:
7. If a wire of 440 m length is moulded in the form of a circle and a square turn-by-turn, find the ratio of the area of the circle to that of square.
Answer 7:
8. Find the area of the square that can be inscribed in a circle of radius 8 cm.
Answer 8:
9. The diameter of a circular park is 24 m. A 3 m wide path runs around it from inside. Find the cost of paving the path at 25 per square meter.
Answer 9:
10. A paper is in the form of a rectangle PQRS in which PQ = 10 cm and QR = 7 cm. Two semi-circular portions with QR and PS as diameters are cut off (As shown in P figure 11.22). Find the area of the remaining part.
Answer 10:
11. A horse is tied to a pole with 21 m long string. Find the area where the horse can graze.
Answer 11:
12. Two concentric circles have radii of 14 cm and 7 cm respectively. Find the area of space between them.
Answer 12:
13. The sum of circumferences of four small circles of equal radius is equal to the circumference of a bigger circle. Find the ratio of the area of the bigger circle to that of the smaller circle.
Answer 13:
14. The area of a circle is equal to the area of a rectangle with sides 112 m and 88 m respectively. Find the circumference of the circle.
Answer 14:
- Chapter 1 Rational Numbers | Class-7 DAV Secondary Mathematics
- Chapter 2 Operations on Rational Numbers | Class-7 DAV Secondary Mathematics
- Chapter 3 Rational Numbers as Decimals | Class-7 DAV Secondary Mathematics
- Chapter 4 Exponents and Powers | Class-7 DAV Secondary Mathematics
- Chapter 5 Application of Percentage | Class-7 DAV Secondary Mathematics
- Chapter 6 Algebraic Expressions | Class-7 DAV Secondary Mathematics
- Chapter 7 Linear Equations in One Variable | Class-7 DAV Secondary Mathematics
- Chapter 8 Triangle and Its Properties | Class-7 DAV Secondary Mathematics
- Chapter 9 Congruent Triangles | Class-7 DAV Secondary Mathematics
- Chapter 10 Construction of Triangles | Class-7 DAV Secondary Mathematics
- Chapter 11 Perimeter and Area | Class-7 DAV Secondary Mathematics
- Chapter 12 Data Handling | Class-7 DAV Secondary Mathematics
- Chapter 13 Symmetry | Class-7 DAV Secondary Mathematics
- Chapter 14 Visualising Solids | Class-7 DAV Secondary Mathematics
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