Bank Exam Speed Maths Master Series Page 18 | Geometry Basics Tricks & Fast Calculation Methods

 

Bank Exam Speed Maths Master Series – Page 18

Geometry Basics Tricks & Fast Calculation Methods

Shaktimatha Learning – Speed Maths Academy
Learn Geometry shortcut tricks, aptitude formulas, and fast calculation methods for Bank Exams, SSC, Railways, Insurance, and Competitive Exams.

Importance of Geometry in Competitive Exams

Geometry is one of the most important mathematical topics in:

• Bank Exams
• SSC
• Railway Exams
• Insurance Exams
• Quantitative Aptitude

This topic is highly useful in:

• Mensuration
• Area & Perimeter
• Data Interpretation
• Coordinate Geometry
• Logical problem solving

🎯 What is Geometry?

Geometry deals with:

• Shapes
• Angles
• Lines
• Triangles
• Circles
• Measurements

Important Geometry Formulas

Square Area Formula

0

Rectangle Area Formula

1

Triangle Area Formula

2

Circle Area Formula

3

Trick 1: Square Shortcut

Example:

Side = 12 cm

Area:

12²

✅ Answer = 144 cm²

Perimeter:

4 × 12

✅ Answer = 48 cm

 Trick 2: Rectangle Shortcut

Example:

Length = 10 cm
Breadth = 6 cm

Area:

10 × 6

✅ Answer = 60 cm²

Perimeter:

2(l+b)

2(10+6)

✅ Answer = 32 cm

 Trick 3: Triangle Shortcut

Example:

Base = 8 cm
Height = 6 cm

Area:

1/2 × 8 × 6

✅ Answer = 24 cm²

Trick 4: Circle Shortcut

Circumference Formula

4

Example:

Radius = 7 cm

Circumference:

2 × 22/7 × 7

✅ Answer = 44 cm

Area:

22/7 × 7 × 7

✅ Answer = 154 cm²

 Trick 5: Pythagoras Theorem

5

Example:

Sides = 3 and 4

c² = 9 + 16

c² = 25

✅ Hypotenuse = 5

 Trick 6: Angle Sum Shortcut

Triangle Angle Sum

6

Example:

Angles = 50° and 60°

Third angle:

180 − 110

✅ Answer = 70°

Important Observation Trick

Memorizing basic geometry formulas saves huge time in:

• Mensuration
• Simplification
• Aptitude calculations

📖 Important Geometry Shortcuts

Topic	Shortcut
Square Area	a²
Rectangle Area	l × b
Triangle Area	1/2 bh
Circle Area	πr²
Circumference	2πr
Pythagoras	a²+b²=c²

Practice Questions

1. Find area of square with side 15 cm
2. Find perimeter of rectangle 12 cm × 8 cm
3. Find area of triangle with base 10 cm and height 8 cm
4. Find circumference of circle with radius 14 cm
5. Find hypotenuse if sides are 5 and 12

✅ Answers

1. 225 cm²
2. 40 cm
3. 40 cm²
4. 88 cm
5. 13

🎯 Preparation Strategy:
Practice area formulas, perimeter formulas, circle concepts, and triangle shortcuts daily to improve mensuration solving and geometry calculation ability.

“Strong Geometry Fundamentals Build Confidence in Aptitude & Competitive Exams.”

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Bank Exam Speed Maths Master Series