Book: NCERT - Mathematics

Chapter: 4. Practical Geometry

Subject: Maths - Class 8th

Q. No. 1 of Exercises 4.4

Listen NCERT Audio Books - Kitabein Ab Bolengi

1
Construct the following quadrilaterals.(i) Quadrilateral DEARDE = 4 cmEA = 5 cmAR = 4.5 cm∠E = 60°∠A = 90°(ii) Quadrilateral TRUETR = 3.5 cmRU = 3 cmUE = 4 cm∠R = 75°∠U = 120°

(i) A rough sketch of this quadrilateral:

(a) Draw a line segment DE of 4 cm and an angle of 60° at point E. The given vertex A is 5 cm away from vertex E so cut a line segment EA of 5 cm from this ray

(b) Again draw an angle of 90° at point A. As vertex R is 4.5 cm away from vertex A, cut a line segment RA of 4.5 cm from this ray

(c) Join D to R

(ii) A rough sketch of this quadrilateral:

(a) Draw a line segment RU of 3 cm and also an angle of 120° at point U

The vertex E is 4 cm away from vertex U so cut a line segment UE of 4 cm from this ray

(b) Now, draw an angle of 75° at point R. As the given vertex T is 3.5 cm away from vertex R so cut a line segment RT of 3.5 cm from this ray

(c) Join T to E

1

1