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Question (e) - Page 150 - Constructing a Triangle when its Sides are given - Chapter 7 Class 7 - A tale of three Intersecting Lines (Ganit Prakash)
Last updated at November 5, 2025 by Teachoo
Constructing a Triangle when its Sides are given
Class 7 (Ganita Prakash 1, 2 & old NCERT)
Chapter 7 Class 7 - A tale of three Intersecting Lines (Ganit Prakash)
- Definition
- Constructing Equilateral Triangle
-
Constructing a Triangle when its Sides are given
- Figure it out - Page 150, 151
- Are Triangles Possible for any Lengths?
- Figure it out - Page 154
- Visualising the Construction of Circles
- Figure it out - Page 156
- Triangle Inequality & Construction of Circles
- Figure it out - Page 159
- Constructing Triangle when 2 Sides and the Included Angle are given
- Constructing Triangle when 2 Angles and the Included Side are given
- Do triangles always exist?
- Sum of angles of a triangle
- Angle Sum Property
- Exterior Angles
- Constructions Related to Altitudes of Triangles
- Figure it out - Page 170, 171
Transcript
Question (e) - Page 150 Construct triangles having the following sidelengths (all the units are in cm): (e) 3.5, 3.5, 3.5 First we draw a rough sketch This is an equilateral triangle Let’s try to draw it now Steps of construction 1. Draw a line segment AB of length 3.5 cm 2. Taking 3.5 cm as radius, and A as center, we draw a full circle lightly 3. Taking 3.5 cm as radius, and B as center, we draw a full circle lightly Now, where these two circles intersect is our point C 5. Join AC and BC and label the sides Thus, Δ ABC is the required triangle
