Practical Geometry Exercise 4.3
NCERT solutions for Class 8 Maths Practical Geometry
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.