You are here
Question 1 (c) - Figure it out - Page 161 - Constructing Triangle when 2 Sides and the Included Angle are given - Chapter 7 Class 7 - A tale of three Intersecting Lines (Ganit Prakash)
Last updated at November 7, 2025 by Teachoo
Constructing Triangle when 2 Sides and the Included Angle 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 1 (c) - Figure it out - Page 161 Construct triangles for the following measurements where the angle is included between the sides: (c) 3 cm, 120°, 8 cm First, we draw a rough figure We take longer side as base Now, let’s construct it Steps of construction 1. Draw a line segment AB of length 8 cm 2. Now, using protractor, we draw 120° from point A 3. Since AC = 3 cm. Taking C as center, 3 cm as radius, we draw an arc Let the point where arc intersects the ray be point C 4. Join BC and label the sides Thus, Δ ABC is the required triangle
