Congruence of Two Triangles | Class 7 Maths Congurency

# Congruence of Two Triangles | Class 7 Maths Congurency

Class 7 Congruence of Two Triangles

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• Congruence of Triangles
• Summary
• What’s Next?

In the previous segment, we had a look at congruent figures. In this segment of the chapter

of ‘Congruence of Triangles’, we will see when two triangles are congruent.

## When can we say two triangles are congruent?

Consider these two triangles △ABC and △PQR

Fig 1

We can say these triangles are congruent, when

• length of side AB = length of side PQ
• length of side BC = length of side QR
• length of side AC = length of side PR
• m∠A = m∠P
• m∠B = m∠Q
• m∠C = m∠R

When all the three sides and angles of the two triangles are equal, then the triangles are

congruent. That is, △ABC and △PQR are congruent triangles.

△ABC ≅ △PQR

The sign is used to denote congruence.

Summary

Also Read: Congruency of Triangles – How will you know that a Triangle is Congruent?

Congruence of Triangles – Different Rules

## Related content

 Class 7 Maths Congruent Figures and Triangles Class 7 Condition for Congruence of Triangles – Example Class 7 SSS Congruence Condition – Example of Maths Congurency Class 7 SAS (Side – Angle – Side) Congruence Condition Class 7 ASA and AAS Condition for Congruence RHS Condition for Congruence | Class 7 Maths Congurency

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