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NCERT Solutions for Class 7 Maths Chapter 10 Practical Geometry Ex 10.3

CBSE students can refer to NCERT Solutions for Class 7 Maths Chapter 10 Practical Geometry Ex 10.3 Textbook Questions and Answers are provided by experts in order to help students secure good marks in exams.

Class 7 Maths NCERT Solutions Chapter 10 Practical Geometry Ex 10.3

Ex 10.3 Class 7 Maths Question 1.
Construct ∆DEF such that DE = 5 cm, DF = 3 cm and m ∠EDF = 90°
Solution:
Steps of Construction:
NCERT Solutions for Class 7 Maths Chapter 10 Practical Geometry 8

  1. Draw a line segment DE of length 5 cm.
  2. At D, draw DX making 90° with DE.
  3. With D as centre, draw an arc of radius 3 cm. It cuts DX at point F.
  4. Join FE. ∆ DEF is now obtained.

Ex 10.3 Class 7 Maths Question 2.
Construct an isosceles triangle in which the lengths of each of its equal Sides is 6.5 cm find the angle between them is 110°
Solution:
Steps of Construction:
NCERT Solutions for Class 7 Maths Chapter 10 Practical Geometry 9

  1. Draw a line segment BC = 6.5 cm.
  2. Draw ∠CBX = 110°.
  3. With B as a centre and radius = 6.5 cm, draw an arc intersecting BX at A.
  4. Join AC to obtain the required ∆ABC.

Ex 10.3 Class 7 Maths Question 3.
Construct ∆ABC with BC = 7.5 cm, AC = 5 cm and m∠C = 60°.
Solution:
Steps of Construction:
NCERT Solutions for Class 7 Maths Chapter 10 Practical Geometry 10

  1. Draw a line segment BC of length 7.5 cm.
  2. At C, draw CX making 60° with CB.
  3. With C as centre, draw an arc of radius 5 cm. It cuts CX at A.
  4. Join AB. ∆ ABC is now obtained.

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