Worksheet Solutions: Fields And Fences - 1 | Mathematics for Class 4: NCERT PDF Download

Q: Answer the following Questions.

(i) Shyam grows rice in his farm. Can you help him to find out the length of boundary from the picture given below?
Ans: 22 cm

(ii) Find how much wire is needed to fence the following fields.
(a)

(b)

Ans: 
(a) 35 cm
(b) 45 cm

(iii) In the picture given below of a field find the side with longest side.
Ans: 40 cm

(iv) Find the length of the boundary of the following figures if each sq. is 1 sq. cm.
(a) 

(b) 

Ans: 
(a) 18 cm
(b) 18 cm

(v) Find the length of boundary in the picture below.
Ans: 28 cm

(vi) Draw and shade a rectangle which covers 40 squares on the given graph paper.
Ans: Students draw themselves.

(vii) Find out the length of the boundary of the hexagon.
Ans: 78 cm

(viii) On the given graph draw two figures which covers the same number of squares.
Ans: Students do this themselves with any shape of their choice.

(ix) Java runs around the outer circle and Maya runs around the inner circle. Can you explain why Java runs more distance than Maya?
Ans: Java runs more distance than Maya because the outer boundary is bigger than the inner boundary.

(x) Find the length of the boundary of this form house.
Ans: 252 m

(xi) Mohan runs around the rectangular field 4 times a day. How much distance do he runs in a day?
Ans: 120 m

(xii) How will you divide this picture into 4 equal pieces. How many number of squares will be there in each piece.
Ans: Each piece will have 5 squares.

(xiii) If the total length of the boundary is 98 cm and length of two sides are 30 cm and 48 cm. Find the length of the third side.
Ans: 20 cm

(xiv) A farmer went to market and bought a fencing wire of 150 m. He wants to put it twice around his form. Is this wire enough?
Ans: This wire is 10 m short from the required wire.

(xv) What will be length of the wire required to fence the triangular field with side 15 m each?
Ans: 45 m

(xvi) Find the length of the boundary of the following figures 
(a) 

(b) 

(c) 

Ans: 
(a) 43 cm
(b) 31 cm
(c) 32 cm

(xvii) Find the length of the boundary with side 5 cm each in the picture below.
Ans: 50 cm

(xviii) Find out which figure will need the longest wire to fence it:
(a)

(b)

(c) 

(d) 

Ans: Figure B will need longest wire of 50 cm

(xix) Find the length of the wire required to fence the triangular park shown in the picture.
Ans: 81 m

(xx) Draw a shape which covers 24 squares on the graph paper.
Ans: Students can draw any figure - regular or irregular.