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Shape Type Classification

Shape Type Classification problems involve grouping figures based on their fundamental geometric shape categories (e.g., polygons vs circles, quadrilaterals vs triangles, regular vs irregular polygons). These foundational problems test your ability to recognize and categorize basic geometric forms.

10Worksheets
200+Practice Questions
BeginnerDifficulty
1-2 hoursHours to Master

What You'll Learn

Introduction & Overview Why This Matters How to Solve Pro Tips & Tricks
Shortcut Methods Common Mistakes Practice Worksheets Exam Importance

Introduction to Shape Type Classification

Shape Type Classification problems involve grouping figures based on their fundamental geometric shape categories (e.g., polygons vs circles, quadrilaterals vs triangles, regular vs irregular polygons). These foundational problems test your ability to recognize and categorize basic geometric forms.

Prerequisites

Basic geometric shape recognition (circle, square, triangle, etc.) Understanding of polygon classification Ability to distinguish curved vs straight-edged shapes Visual pattern recognition
Why This Matters: Shape Type Classification is fundamental to figure classification. You can expect 2-3 questions in SSC CGL, 2-3 in Banking PO, and 2-3 in Railways RRB exams.

How to Solve Shape Type Classification Problems

1

Step 1: Identify all the shapes in the given set of figures

2

Step 2: Note the basic shape categories (circle, triangle, square, rectangle, pentagon, etc.)

3

Step 3: Look for a common property that divides the figures into two distinct groups

4

Step 4: Common classifications: polygons vs curved shapes, quadrilaterals vs triangles, 3-sided vs 4-sided, etc.

5

Step 5: Count how many figures belong to each category

6

Step 6: Verify that the classification property applies consistently to all figures

7

Step 7: Select the answer option that correctly describes the classification basis

Pro Strategy: Always identify the most fundamental geometric property first. Look for differences in number of sides, presence of curves, or basic shape families.

Example Problem

Example: Six figures are shown - three circles and three triangles. How are they classified? Solution: Step 1: Identify shapes: three circles (curved), three triangles (polygons with 3 straight sides) Step 2: Group 1: Circles (curved boundaries) Step 3: Group 2: Triangles (straight-edged polygons) Step 4: Classification basis = Curved vs Straight-edged shapes Answer: Curved shapes vs Polygons

Pro Tips & Tricks

  • Count the number of sides for each polygon
  • Circle has 0 sides (infinite actually, but classified as curved)
  • Triangles have 3 sides, quadrilaterals have 4 sides
  • Pentagons have 5 sides, hexagons have 6 sides
  • Polygons have straight edges; circles, ellipses, ovals have curved edges
  • All polygons with same number of sides belong to same group

Shortcut Methods to Solve Faster

Curved shapes vs Polygons is a common classification
3-sided (triangles) vs 4-sided (quadrilaterals) is another common pattern
If all figures are polygons, classify by number of sides
If some have curves and some have straight edges, that's the classification

Common Mistakes to Avoid

Overlooking that circles are not polygons
Confusing rhombus with square (both quadrilaterals)
Missing that different types of triangles (equilateral, right, isosceles) are all triangles
Focusing on orientation instead of shape type

Exam Importance

Shape Type Classification is an important topic for various competitive exams. Here's how frequently it appears:

SSC CGL
2-3 questions
BANKING PO
2-3 questions
RAILWAYS RRB
2-3 questions
CAT
1-2 questions
INSURANCE
2-3 questions

Ready to Master Shape Type Classification?

Start with Worksheet 1 and work your way up to expert level! Each worksheet includes:

20 practice questions
Detailed solutions
Step-by-step explanations
Start Practicing Now