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SAI International School

CLASS – VII
Mathematics
Chapter- 7: Congruence of Triangles

Worksheet- 2

Question Questions Marks
No.
1) Let ABC and DEF be two triangles in which AB = DE, BC = FD and CA = EF. 1

The two triangles are congruent under the correspondence ABC ↔
________
Solution: EDF
2) PS is the bisector of ∠P and PQ = PR. 1

Then ∆PRS and ∆PQS are congruent by the criterion
(a) AAA (b) SAS (c) ASA (d)
both (b) and (c)
Solution: (b) SAS
3) Which one of the following is not a criterion for congruence of two 1
triangles?
(a) ASA (b) SSA (c) SAS (d) SSS

Solution: (b) SSA

4) Given that ABC ≅  DEF. If AB = 7 cm, then what is the length of DE? 1
0
5) Among two congruent angles, one has the measure of 70 . What is the 1
measure of the other angle?

6) If  BAC ≅  YZX, state true or false. 2
(i) AC = ZX (ii) BC = YZ
(iii) ∠A = ∠B (iv) ∠B = ∠Y

7) In the following figure,  ADB ≅  CDB. Find the values of x and y. 2