Ncert Solutions For Class 8 Maths Ex 4.4

Ncert Solutions For Class 8 Maths Chapter 4 Ex 4.4

Question 1:

Construct the given quadrilaterals.

(a) Quadrilateral ABCD

AB = 4cm

BC = 5cm

CD = 4.5cm

B = 60

C = 90

 

(b) Quadrilateral PQRS

PQ = 3.5cm

QR = 3cm

RS = 4cm

Q = 75

R = 120

 

Answer:

(a) Quadrilateral ABCD

(i) Draw a rough sketch of the given quadrilateral as given below.

45

(ii) Draw a line segment AB of 4 cm and mark an angle of 60 at point B. Cut a line segment BC of 5 cm from its ray as vertex B is 6 cm away from vertex B.

46

(iii) Draw an angle of 90 at point C. Cut a line segment DC of 4.5 cm from its ray as vertex C is 4.5 cm away from vertex C.

47

(iv) Join A to D.

48

Thus we get the required quadrilateral ABCD.

 

(b) Quadrilateral PQRS

(i) Draw a rough sketch of the given quadrilateral as given below.

49

(ii) Draw a line segment QR of 4 cm and point R make an angle of 120. Cut a line segment RS of 5 cm from its ray as vertex S is 5 cm away from vertex R.

50

(iii) Draw an angle of 75 at point Q. Cut a line segment QP of 4.5 cm from its ray as vertex P is 4.5 cm away from vertex Q.

51

(iv) Join P to S.

52

Thus we get the required quadrilateral PQRS.

 

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