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RRB ALP Recruitment – Important Geometry Formulas

RRB ALP Recruitment Geometry

RRB ALP Recruitment and Group D Exam is nearing. It is a golden opportunity to get a Job with Indian Railways. To be able to clear the RRB ALP and Group D Recruitment Exam what is required is a good preparation plan. To assist you with your preparation, In this blog, we have compiled a list of important Geometrical formulas.

RRB ALP Recruitment

RRB ALP Recruitment and Group D Exam – Formulas of Area and Perimeter

Figure Area Perimeter
Circle -:

circle

 

 

 

= pi × r2

or

= (pi × d2) / 4

 

 

 

= 2 × pi × r

or

= pi × d

Square -:

square formula

 

 

= s2

 

 

= s + s + s + s

= 4 × s

Rectangle -:

rectangle formula

 

 

 

 

= l × w

 

 

 

 

= l + l + w + w

= 2 × l + 2 × w 

Triangle -:

Triangle formula

 

 

 

 

 

= (b × h) / 2

 

 

 

 

 

= a + b + c

Parallelogram -:

paralellogram formula RRB ALP Recruitment

 

 

 

 

= b × h 

 

 

 

= a + a + b + b

= 2 × a + 2 × b 

Rhombus -:

Rhombus formula RRB ALP Recruitment

 

 

 

 

= b × h

 

 

 

 

= b + b + b + b

= 4 × b

Trapezoid -:

Trapezoid formula RRB ALP Recruitment

 

 

 

 

 

= (a + b) / 2 × h

 

 

 

 

 

= a + b + c + d

RRB ALP Recruitment

RRB ALP Recruitment and Group D Exam – Sample Questions

Q1) The width of a rectangular hall is 3/4th of its length. If the area of the hall is 300 sq.m, then the difference between its length and width is:

(a) 3 m

(b) 4 m

(c) 5 m

(d) 15 m

 

Answer = Option (c) – 5 m

Answer 1

RRB ALP Recruitment

Q2) A man walked 20 m to cross a rectangular field diagonally. If the length of the field is 16 m, the breadth of the field is:

(a) 4 m

(b) 16 m

(c) 12 m

(d) Can’t be determined

 

Answer = Option (c) – 12 m

Answer 2

We hope this blog is helpful for your RRB ALP Recruitment and Group D Exam preparation.

RRB ALP Recruitment

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All the best for RRB ALP Recruitment and Group D Exam

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