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Angles banana

Class 6 Maths · Chapter 2: Lines aur Angles · NCERT Ganita Prakash section 2.10

Seekho

Aditya ∠MOR = 30° banana chahta hai. O vertex hoga aur OR base arm. Step 1: ruler se base OR kheencho.

Step 2: protractor ka centre O par rakho, aur OR ko 0 wali line se milao.

Step 3: 0 se shuru karke usi line par 30 tak gino, aur wahan point M lagao.

Step 4: ruler se O aur M ko jodo. ∠MOR = 30° taiyaar hai.

Ab tumhari baari: protractor se 75° ka angle banao.

Angle andaaza game: pehle angle ka andaaza lagao, phir naapo. Jo pata hai use use karo: 90° ek L hai, 45° aadha L, 135° dedh L.

Yaad rakho

  • Base arm kheencho, protractor ka centre vertex par aur base 0 par, angle tak gino aur point lagao, phir jodo.
  • Andaaze ke liye 90° (L) aur 45° (aadha L) se milao.

Quick check

Protractor se angle banate waqt protractor ka centre kahan rakhte ho?

  1. Vertex par
  2. Base arm ke doosre sire par
  3. Arm par kahin bhi
  4. Point T par
Answer

Vertex par. Centre hamesha vertex par, aur base arm 0 ke saath.

Socho

Bina protractor ke 34° banane ki koshish karo. Kaise kareeb pahunchoge?

Ek answer

34° right angle ke ek tihaai (30°) se thoda zyada hai. Aadha L (45°) banao, phir thoda chhota karo.

Practice

Teen levels (easy, medium, hard) ke naye sawaalon se practice karo, kuch hands-on, hints aur hal ke saath. Topic poora karne ke liye pichhle 5 mein se 4 sahi karo.