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Curved vs Straight Edges

Curved vs Straight Edges problems present five figures where four have one type of edge (curved or straight) and one has the opposite. You must identify which figure has a different edge type. These problems test understanding of geometric edge properties and shape classification.

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 Curved vs Straight Edges

Curved vs Straight Edges problems present five figures where four have one type of edge (curved or straight) and one has the opposite. You must identify which figure has a different edge type. These problems test understanding of geometric edge properties and shape classification.

Prerequisites

Understanding of curved vs straight lines Polygon edge knowledge Circle properties Shape boundary analysis
Why This Matters: Curved vs Straight Edges appears in 1-2 questions in SSC CGL and Banking PO exams. It tests geometric edge recognition.

How to Solve Curved vs Straight Edges Problems

1

Step 1: Examine the boundary of each figure

2

Step 2: Determine if the figure has curved edges, straight edges, or both

3

Step 3: Identify the edge type that appears most frequently

4

Step 4: The figure with the opposite edge type is the odd one out

5

Step 5: Verify that all other figures share the same edge type

Pro Strategy: Identify whether each figure's boundary consists of curved lines, straight lines, or a combination. Figures with only curved edges form one group; those with only straight edges form another.

Example Problem

Example: Four circles (curved edges) and one square (straight edges). Which is odd? Solution: Step 1: Circles have curved edges only Step 2: Square has straight edges only Step 3: Most common = curved edges Step 4: Square is different Answer: The square is the odd one out

Pro Tips & Tricks

  • Circle, ellipse, oval = curved edges only
  • Polygons (triangle, square, pentagon) = straight edges only
  • Heart shape = mixed edges
  • Semi-circle = mixed edges (curved top, straight base)
  • All sides of a polygon are straight line segments

Shortcut Methods to Solve Faster

If you can trace the entire boundary without lifting your finger and it's always curved → curved edges
If the boundary is made of straight line segments → straight edges
Curved vs straight is often the most obvious distinction

Common Mistakes to Avoid

Classifying a square as having curved edges
Classifying a circle as having straight edges
Not recognizing that stars have straight edges

Exam Importance

Curved vs Straight Edges is an important topic for various competitive exams. Here's how frequently it appears:

SSC CGL
1-2 questions
BANKING PO
1-2 questions
RAILWAYS RRB
2-3 questions
CAT
0-1 questions
GMAT
0-1 questions
INSURANCE
1-2 questions

Ready to Master Curved vs Straight Edges?

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

20 practice questions
Detailed solutions
Step-by-step explanations
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