Clinometer | Vacation Learning: Build & Use to Measure Heights (Using 45° Method)| Grade 8 & Above

Looking for a fun and practical math activity this vacation? In this video, you’ll learn how to make two types of clinometers at home and use the 45-degree method to measure the height of trees, buildings, and more!
Learn how to measure the height of a tree using a simple DIY clinometer and basic trigonometry! In this hands-on activity, we use the 45° angle method to estimate height, combining math and real-world exploration. Perfect for Grades 8 to 10 and anyone learning heights and distances in geometry. Includes clear steps, explanations, and a fun educational illustration.
Topics Covered:
✅Protractor and DIY clinometer construction
✅Using tan θ = opposite/adjacent
✅Real-life application of a 45° angle
✅Isosceles right triangle in trigonometry
Ideal for CBSE, ICSE, and international curriculums grade 8 and above.
00:00 Introduction
01:28 To make a class room protractor clinometer
02:24 DIY Protractor from Cardboard
03:03 Steps to Make a Cardboard Protractor
03:56 How to Use the Clinometer
04:53 How to measure the distance from where you are standing to the building?
05:45 Estimating the height of a tree using a 45° angle
(Heights & distances)
07: Conclusion
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DIY clinometer
Measure tree height
Trigonometry in real life
Heights and distances class 10
tan theta formula
45° angle method
Isosceles right triangle
Clinometer activity for students
Math outdoor activity
CBSE class 10 math
ICSE math project
Trigonometry hands-on learning
Tree height measurement
Math activity with clinometer
Trigonometry project idea
Class 9 and 10 geometry activity
how to measure with a protractor
Digital height meter
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