Q 1. Under a given correspondence, two triangles are congruent if the three sides of the one are equal to the three corresponding sides of the other.’
The above is known as
(a) SSS congruence of two triangles
(b) SAS congruence of two triangles
(c) ASA congruence of two triangles
(d) RHS congruence of two right-angled triangles
Q 2. ‘Under a given correspondence, two triangles are congruent if two sides and the angle included between them in one of the triangles are equal to the corresponding sides and the angle included between them of the other triangle.’
The above is known as
(a) SSS congruence of two triangles
(b) SAS congruence of two triangles
(c) ASA congruence of two triangles
(d) RHS congruence of two right-angled triangles
Q 3. Under a given correspondence, two triangles are congruent if two angles and the side included between them in one of the triangles are equal to the corresponding angles and the side included between them of the other triangle.’
The above is known as
(а) SSS congruence of two triangles
(b) SAS congruence of two triangles
(c) ASA congruence of two triangles
(d) RHS congruence of two right-angled triangles
Q 4. Under a given correspondence, two right-angled triangles are congruent if the hypotenuse and a leg of one of the triangles are equal to the hypotenuse and the corresponding leg of the other triangle.’
The above is known as
(а) SSS congruence of two triangles
(b) SAS congruence of two triangles
(c) ASA congruence of two triangles
(d) RHS congruence of two right-angled triangles
Q 5. For two given triangles ABC and PQR, how many matchings are possible?
(a) 2
(b) 4
(c) 6
(d) 3
Q 6. The symbol for congruence is
(a) ≡
(b) ≅
(c) ↔
(d) =
Q 7. The symbol for correspondence is
(a) =
(b) ↔
(c) ≡
(d) ≅
Q 8. If ∆ ABC = ∆ PQR, then ∠A corresponds to
(a) ∠P
(b) ∠Q
(c) ∠R
(d) none of these
Q 9. If ∆ ABC = ∆ PQR, then ∠B corresponds to
(a) ∠P
(b) ∠Q
(c) ∠R
(d) none of these
Q 10. If ∆ ABC= ∆ PQR, then ∠C corresponds to
(a) ∠P
(b) ∠Q
(c) ∠R
(d) none of these
Q 11. We want to show that ∆ ART = ∆ PEN and we have to use SSS criterion. We have AR = PE and RT = EN. What more we need to show?
(a) AT = PN
(b) AT = PE
(c) AT = EN
(d) none of these
Q 12. We want to show that ∆ ART = ∆ PEN. We have to use SAS criterion. We have ∠T = ∠N, RT = EN. What more we need to show?
(a) PN = AT
(b) PN = AR
(c) PN = RT
(d) None of these
Q 13. We want to show that ∆ ART = ∆ PEN. We have to use ASA criterion. We have AT = PN, ∠A = ∠P. What more we need to show?
(a) ∠T = ∠N
(b) ∠T = ∠E
(c) ∠T = ∠P
(d) None of these
Q 14. Which congruence criterion do you use in the following?
Given AC = DF
AB = DE
BC = EF
So, ∆ ABC ≅ ∆ DEF
(a) SSS
(b) SAS
(c) ASA
(d) RHS
Q 15. Which congruence criterion do you use in the following?
Given : ZX = RP
RQ = ZY
∠ PRQ = ∠ XZY
So, ∆ PRQ = ∆ XYZ
(a) SSS
(b) SAS
(c) ASA
(d) RHS
Q 16. Which congruence criterion do you use in the following?
(a) SSS
(b) SAS
(c) ASA
(d) RHS
Q 17. Which congruence criterion do you use in the following?
(a) SSS
(b) SAS
(c) ASA
(d) RHS
Q 18. In the following figure, the two triangles are congruent. The corresponding parts are marked. We can write ∆ RAT = ?
(a) ∆ WON
(b) ∆ WNO
(c) ∆ OWN
(d) ∆ ONW
Q 19. Complete the congruence statement ∆ BCA = ?
(a) ∆ BTA
(b) ∆ BAT
(c) ∆ ABT
(d) ∆ ATB
Q 20. Complete the congruence statement ∆ QRS
(a) ∆ TPQ
(b) ∆ TQP
(c) ∆ QTP
(d) ∆ QPT
Q 21. If ∆ ABC and ∆ PQR are to be congruent, name one additional pair of corresponding parts
(a) BC = QR
(b) BC = PQ
(c) BC = PR
(d) none of these
Q 22. By which congruence, is ∆ ABC = ∆ FED?
(a) SSS
(b) SAS
(c) ASA
(d) RHS
Q 23. What comes next in the sequence: 2, 4, 10, 28, ___ ?
(a) 64
(b) 70
(c) 76
(d) 82
Q 24. Two angles are congruent if they have
(a) Same name
(b) unequal measures
(c) equal measures
(d) none of these
Q 25. What is the side included between the angles A and B in ΔABC?
(a) AC
(b) BC
(c) AB
(d) None of these
Q 26. ΔABC and ΔPQR are congruent under the correspondence: ABC ↔ RQP, then the part of ΔABC that correspond to ∠P is
(a) ∠A
(b) ∠C
(c) ∠B
(d) None of these
Q 27. If the vertical angle of an isosceles triangle is 40°, then a measure of the other two angles will be
(a) 60°, 60°
(b) 80°, 80°
(c) 70°, 70°
(d) 45°, 45°
Q 28. Two triangles, A PQR and ADEF are of the same size and shape. What can we conclude about them?
(a) ΔPQR is smaller than ΔDFE.
(b) ΔPQR is larger than ΔDFE.
(c) ΔPQR is congruent to ΔDFE.
(d) ΔPQR is not congruent to ΔDFE.
Q 29. In ΔABC and ΔPQR, AB = 4 cm, BC = 5 cm, AC = 6 cm and PQ = 4 cm. QR = 5 cm. PR = 6 cm. then which of the following is true?
(a) ΔABC ≅ ΔQRP
(b) ΔABC ≅ ΔPQR
(c) ΔABC ≅ ΔRQP
(d) None of these