Area

Class 6 Maths · Chapter 6: Perimeter aur Area · NCERT Ganita Prakash section 6.2

Seekho

Kisi band shape ka area wo jagah hai jo wo gherti hai. Ise hum unit squares se naapte hain: 1 cm side wale square ka area 1 sq cm hai.

Pehli line bharo: usme 5 squares hain.

Saari lines bharo: 5-5 ki 3 lines = 15 squares. Ginne ki jagah guna karo! Rectangle ka area = length × breadth.

5 × 3 = 15 sq cm

4 cm side wale square mein 4-4 ki 4 lines hain. Square ka area = side × side. Yaad rakho: perimeter lambai hai (cm), area squares ki ginti hai (sq cm).

4 × 4 = 16 sq cm

Ek deewaar 6 m lambi aur 3 m oonchi hai. Usme 2 m chaudi aur 1 m oonchi khidki hai. Paint karne ka area = deewaar ka area − khidki ka area.

18 − 2 = 16 sq m

Kuch shapes rectangle nahi hoti. Unhe rectangles mein baanto, har ek ka area nikaalo, aur jodo. Yahan A 3 × 5 hai aur B 3 × 2.

15 + 6 = 21 sq m

Gol shapes ke liye squared paper lo: poora square = 1, aadhe se zyada = 1, aadhe se kam chhod do, aur theek aadha = ½. Ye circle (4 units chauda) lagbhag 12 sq units ka hai.

4 full + 8 more than half ≈ 12 sq units

Same area ka matlab same perimeter nahi! In sab rectangles ka area 12 sq units hai. Rectangle jitna square jaisa, perimeter utna kam.

Ab tumhari baari! 12 sq cm area wala rectangle banao. Do alag-alag dhoondo, aur dekho perimeter kaise badalta hai.

Yaad rakho

• Area wo jagah hai jo band shape gherti hai. Ise square units (sq cm, sq m) mein naapte hain.
• Rectangle: length × breadth. Square: side × side.
• Baaki shapes ko rectangles mein baanto, har area nikaalo, phir jodo.

Quick check

Ek kamra 6 m lamba aur 4 m chauda hai. Farsh ka area kitna hai?

1. 10 sq m
2. 20 m
3. 24 sq m
4. 24 m

Socho

24 sq units area wale rectangles banao (poore number wali sides). Kiska perimeter sabse zyada hai? Kiska sabse kam?

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.