Linear equations Formula:-
1. (A+B)2= A2+B2+2AB
2. (A-B)2=A2+ B 2-2AB
3. (A2 -B 2 )= (A+B)(A-B)
4. (A2 +B 2 )= (A+B)2-2AB
5. (A2 +B 2 )= (A+B)2+2AB
Mensuration Formula:-
1. Circle
2. Triangle
3. Calendar
4. Rectangle
5. Mix
Time and distance Trick questions
1. Circle:-
A) area = /\r2 Where r= radius of circle
B) Parameter = 2/\r
2. Triangle:-
A) area = 1/2 base * hight
3. Calendar:-
A) area = /\r2h where r = radius of calendar
h = height of calendar
B) Parameter = 2/\rh
4. Rectangle:-
A) area = l × b where l = length and
b = base
Parameter = 2 ( l + b)
5. Mix :-
Find the area in Hero Formula
S = ( a + b + c)/2 where a , b , c is the side of triangle.
Area = [s(s-a)(s-b)(s-c)]1/2
some other topics
1. स्टैचू ऑफ इंडिया/# 2022 में स्थापित कुछ महत्वपूर्ण स्टैचू
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