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School to introduce school activities & positive behavior support https://kangdong.sen.hs.kr/

30/08/2026

A person standing on the roof of a 16 m tall building observes the top and bottom of a tree. The angles of elevation and depression are 60Β° and 30Β°, respectively. If the horizontal distance between the building and the tree is the same for both observations, find the height h of the tree.
#𝐒𝐀𝐒π₯π₯π¬πƒπžπ―πžπ₯𝐨𝐩𝐦𝐞𝐧𝐭

01/05/2026

Cute DIY Insect Crafts from Waste Bottle Caps 🐜✨

16/04/2026
15/04/2026

What If Earth Had No Gravity for 10 Seconds?

This set of handwritten notes beautifully explains important scientists and key concepts from science and history. From the invention of the World Wide Web to quantum theory and expanding universe, each topic is simplified for easy understanding. Perfect for students preparing for exams or building strong fundamentals.

12/04/2026
11/04/2026

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