NCERT Solutions for Class 8 Maths Exercise 4.3

NCERT Solutions for Class 8 Maths Exercise 4.3 Class 8 Maths book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 8 Maths chapter wise NCERT solution for Maths Book all the chapters can be downloaded from our website and myCBSEguide mobile app for free.

NCERT solutions for Class 8 Maths Practical Geometry Download as PDF

NCERT Solutions for Class 8 Maths Practical Geometry

Class –VIII Mathematics (Ex. 4.3)

1. Construct the following quadrilaterals:

(i) Quadrilateral MORE

MO = 6 cm, OR = 4.5 cm,

M = O = R =

(ii) Quadrilateral PLAN

PL = 4 cm, LA = 6.5 cm,

P = A = N =

(iii) Parallelogram HEAR

HE = 5 cm, EA = 6 cm, R =

(iv) Rectangle OKAY

OK = 7 cm, KA = 5 cm

Ans.  (i) Given:  MO = 6 cm, OR = 4.5 cm,

M = O = R =

To construct: A quadrilateral MORE.

Steps of construction:

(a) Draw a line segment MO = 6 cm.

(b) Construct R =  and taking radius 4.5 cm, draw an arc taking O as centre, which intersects at R.

(c) Also construct an angle  at R and produce the side RE.

(d) Construct another angle of  at point M and produce the side ME. Both sides ME and RE intersect at E.

It is the required quadrilateral MORE.

(ii) Given:  PL = 4 cm, LA = 6.5 cm,

P = A = N =

To construct: A quadrilateral PLAN.

To find:  L =

Steps of construction:

(a) Draw a line segment PL = 4 cm.

(b) Construct angle of  at P and produce the side PN.

(c) Construct angle of  at L and with L as centre, draw an arc of radius 6 cm, which intersects at A.

(d) Construct A =  at A and produce the side AN which intersects PN at N.

It is the required quadrilateral PLAN.

NCERT Solutions for Class 8 Maths Exercise 4.3

(iii) Given:  HE = 5 cm, EA = 6 cm,

R =

To construct: A parallelogram HEAR.

To find:  H =

[ Sum of adjacent angle of gm is ]

Steps of construction:

(a) Draw a line segment HE = 5 cm.

(b) Construct H =  and draw an arc of radius 6 cm with centre H. It intersects AR at R.

(c) Join RH.

(d) Draw R = E = and draw an arc of radius 6 cm with E as a centre which intersects RA at A.

(e) Join RA

It is the required parallelogram HEAR.

(iv) Given:  OK = 7 cm, KA = 5 cm

To construct: A rectangle OKAY.

NCERT Solutions for Class 8 Maths Exercise 4.3

Steps of construction:

(a)  Draw a line segment OK = 7 cm.

(b) Construct angle  at both points O and K and produce these sides.

(c) Draw two arcs of radius 5 cm from points O and K respectively. These arcs intersect at Y and A.

(d) Join YA.

It is the required rectangle OKAY.

NCERT Solutions for Class 8 Maths Exercise 4.3

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