You can Download KSEEB Solutions for Class 8 Maths Chapter 4 Practical Geometry Ex 4.5 Questions and Answers helps you to revise the complete syllabus.

## KSEEB Solutions for Class 8 Maths Chapter 4 Practical Geometry Ex 4.5

Question 1.

Draw the square READ with RE = 5.1 cm.

Solution:

In a square all sides are equal and all angles are 90° each.

Steps of construction:

- Draw a line – segment RE = 5.1 cm.
- Make ∠YRE = 90° and ∠REX = 90°.
- Cut off DR = AE = 5.1 cm.
- Join AD.
- DEAR is a required square.

Question 2.

Draw a rhombus whose diagonals are 5.2 cm.

Solution:

Diagonals of a rhombus bisect perpendicularly.

Steps of construction:

- Draw diagonal BD = 5.2 cm.
- Draw perpendicular bisector of BD, take it XY which intersect BD at O.
- Cut off OA = 3.2 cm and OC = 3.2 cm on the opposite side of BD.
- Join A and C to B and D.
- ABCD is a required rhombus.

Question 3.

Draw a rectangle with adjacent sides of length 5 cm and 4 cm.

Solution:

In a rectangle, each angle is 90° and opposite sides are equal.

Steps of construction:

- Draw a line segment AB = 5 cm.
- Construct ∠A = ∠B = 90°.
- Cut off AD = BC = 4 cm.
- Join CD.
- ABCD is a required rectangle.

Question 4.

Draw a parallelogram OKAY where OK = 5.5 cm and KA = 4.2 cm.

Solution:

In a parallelogram opposite sides are equal.

Steps of construction:

- Draw a line segment OK = 5.5 cm.
- Take ∠K = 75° and construct it, such that ∠OKX = 75°.
- Cut off KA = 4.2.
- From A draw an arc of radius 5.5 cm.
- From O draw an arc of radius 4.2 cm.
- Both these arcs intersect at Y.
- Join OY and AY.
- OKAY is a required parallelogram.