Question

a lawn has a length of 18m and breadth of 13m . how much long wire is required to to fence the lawn at the rate of ₹5 per meter ​

Answer 1

Answer:

(i) Length = 24.5 m

Breadth = 18 m

∴ Area of the rectangle = Length × Breadth

= 24.5 m × 18 m

= 441 m2

(ii) Length = 12.5 m

Breadth = 8 dm = (8 × 10) = 80 cm = 0.8 m [since 1 dm = 10 cm and 1 m = 100 cm]

∴ Area of the rectangle = Length × Breadth

= 12.5 m × 0.8 m

= 10 m2

Answer 2

Answer:

Length = 24.5 m

Breadth = 18 m

   

   ∴ Area of the rectangle = Length ×Breadth

                                 = 24.5 m × 18 m

                                 = 441 m2 

              

  (ii) Length = 12.5 m

Breadth = 8 dm = (8 × 10) = 80 cm = 0.8 m     [since 1 dm = 10 cm and 1 m = 100 cm]

      

      ∴ Area of the rectangle = Length ×Breadth

                                    = 12.5 m × 0.8 m

                                    = 10 m/ square

Step-by-step explanation:

any other doubt

class 7th students

(Rs Aggarwal 2018 for Class 7 Math Chapter 20 - Mensuration)

) I m right