Ncert solutions mathematics class 8 Solutions for Chapter 4 practical geometry

Exercises in Chapter 4 practical geometry Grade 8

Exercise 4.1

Exercise 4.2

Exercise 4.3

Exercise 4.4

Exercise 4.5

Questions in Exercise 4.1

Construct the following quadrilaterals.

(i) Quadrilateral ABCD

AB = 4.5 cm

BC = 5.5 cm

CD = 4 cm

AD = 6 cm

AC = 7 cm

(ii) Quadrilateral JUMP

JU = 3.5 cm

UM = 4 cm

MP = 5 cm

PJ = 4.5 cm

PU = 6.5 cm

(iii)Parallelogram MORE

OR = 6 cm

RE = 4.5 cm

EO = 7.5 cm

(iv)Rhombus BEST

BE = 4.5 cm

ET = 6 cm

Questions in Exercise 4.2

Construct the following quadrilaterals.

(i) Quadrilateral LIFT

LI = 4 cm

IF = 3 cm

TL = 2.5 cm

LF = 4.5 cm

IT = 4 cm

(ii) Quadrilateral GOLD

OL = 7.5 cm

GL = 6 cm

GD = 6 cm

LD = 5 cm

OD = 10 cm

(iii)Rhombus BEND

BN = 5.6 cm

DE = 6.5 cm

Questions in Exercise 4.3

Construct the following quadrilaterals.

(i) Quadrilateral MORE

MO = 6 cm

OR = 4.5 cm

$\begin{array}{l} \angle \mathrm{M}=60^{\circ} \\ \angle \mathrm{O}=105^{\circ} \\ \angle \mathrm{R}=105^{\circ} \end{array}$

(ii) Quadrilateral PLAN

PL = 4 cm

LA = 6.5 cm

$\begin{array}{l} \angle \mathrm{P}=90^{\circ} \\ \angle \mathrm{A}=110^{\circ} \\ \angle \mathrm{N}=85^{\circ} \end{array}$

(iii) Parallelogram HEAR

HE = 5 cm

EA = 6 cm

$\angle \mathrm{R}=85^{\circ}$

(iv) Rectangle OKAY

OK = 7 cm

KA = 5 cm

Questions in Exercise 4.4

Construct the following quadrilaterals,

(i) Quadrilateral DEAR

DE = 4 cm

EA = 5 cm

AR = 4.5 cm

$\begin{array}{l} \angle \mathrm{E}=60^{\circ} \\ \angle \mathrm{A}=90^{\circ} \end{array}$

(ii) Quadrilateral TRUE

TR = 3.5 cm

RU = 3 cm

UE = 4 cm

$\begin{array}{l} \angle \mathrm{R}=75^{\circ} \\ \angle \mathrm{U}=120^{\circ} \end{array}$

Questions in Exercise 4.5

Draw the following:

The square READ with RE = 5.1 cm

Draw the following

A rhombus whose diagonals are 5.2 cm and 6.4 cm long.

Draw the following

A rectangle with adjacent sides of length 5 cm and 4 cm.

Draw the following

A parallelogram OKAY where OK = 5.5 cm and KA = 4.2 cm.

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Chapters in this book

Rational Numbers

Linear Equations in One Variable

Understanding Quadrilaterals

Practical Geometry

Data Handling

Squares and Square Roots

Cubes and Cube Roots

Comparing Quantities

Algebraic Expressions and Identities

Visualising Solid Shapes

Mensuration

Exponents and Powers

Direct and Inverse Proportions

Factorisation

Introduction to Graphs

Playing with Numbers

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