NCERT Class 8 Mathematics Solutions: Chapter 4 – Practical Geometry Exercise 4.3 Part 2 (For CBSE, ICSE, IAS, NET, NRA 2022)

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Showing Construction of Quadrilaterals for Practica …

(iii)

Given,

To construct, Parallelogram HEAR

Step of Construction:

(1) Draw a line sketch of the Parallelogram HEAR is as follows.

Image:

A Figure is Parallelogram HEAR

(2) Line and an angle of at point E, cut a line segment EA of 6 cm from this ray.

Image:

A Figure is an Angle of 85 Degree at Point E

(3) Vertex R is 6 cm and 5 cm away from vertex H and A respectively. By taking radius as 6 cm and 5 cm, draw arcs from point H and A respectively. There will be make point R.

Image:

Draw a Arcs from Point H and a Respectively

(4) Join R to H and A.

Image:

In this Figure Join R to H and A

HEAR is the required quadrilateral.

(iv)

Given,

To construct, Rectangle OKAY

Step of Construction:

(1) Rectangle OKAY is drawn as follows.

Image

A Figure is Rectangle OKAY

(2) Draw a line OK of 7 cm and an angle of at point K. As vertex A is 5 cm away from vertex K, a line KA of 5 cm from this ray.

Image

Draw a Line OK and a Line KA

(3) Vertex Y is 5 cm and 7 cm away from vertex O and A respectively. Draw arc from point O and A respectively. These will be intersecting each other at point Y.

Image

Draw Arc from Point O and a Respectively to Make Point Y

(4) Join Y to A and O.

Image

Given Figure Join Y to a and O

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