You are here
![[Maths] What are the other angles that can be constructed using angle - Figure it out - Pag 144, 145](https://cdn.teachoo.com/af3e330c-f23e-4604-8c0a-8299945d38cf/slide89.jpg)
Question 4 - Figure it out - Pag 144, 145 - Chapter 6 Class 7 - Constructions and Tilings (Ganita Prakash II)
Last updated at February 6, 2026 by Teachoo
Class 7 (Ganita Prakash 1, 2 & old NCERT)
Chapter 6 Class 7 - Constructions and Tilings (Ganita Prakash II)
- Constructing an Eye
- Constructing a Perpendicular Bisector
- Constructing angle 90Β°
- Construction Methods in Εulba-SΕ«tras
- Constructing Angle Bisectors
-
Figure it out - Pag 144, 145
- Constructing Copy of an Angle
- Construction of a Line Parallel to the Given Line
- Constructing Arch Designs
- Constructing Regular Hexagon, Angle 60Β° and 6-pointed Star
- Figure it out - Pag 154, 155
- Tangrams
- Tiling
- Figure it out - Page 160
- Tiling the Entire Plane
Transcript
Question 4 What are the other angles that can be constructed using angle bisection? Can you construct 65.5Β° angle?We can construct any angle that is a half of a standard angle. Start with γππγ^β β Bisect to get γππγ^ββγππγ^ββγπ.πγ^β Start with γππγ^ββ Bisect to get γππγ^ββγππ.πγ^β Now, the question asks Can you construct γ65.5γ^β ? No, not with just a ruler and compass. This is because Ruler and compass constructions work for angles that are multiples of π^β (like 15, 30, 45, 60β¦) If we double 65.5 , you get 131 Since 131 is not divisible by 3 , we cannot build this angle using standard geometric construction methods We would need a protractor for this one!
