If AB = QR, BC = PR and CA = PQ, then
(A) ∆ ABC ≅ ∆ PQR (B) ∆ CBA ≅ ∆ PRQ
(C) ∆ BAC ≅ ∆ RPQ (D) ∆ PQR ≅ ∆ BCA
Which of the following is not a criterion for congruence of triangles?
(A) SAS (B) ASA (C) SSA (D) SSS
If ∆ ABC ≅ ∆ PQR and ∆ ABC is not congruent to ∆ RPQ, then which of the following is not true:
(A) BC = PQ (B) AC = PR (C) QR = BC (D) AB = PQ
Prove that two lines that are respectively perpendicular to two intersecting lines intersect each other.
[Hint: Use proof by contradiction].
Prove that through a given point, we can draw only one perpendicular to a given line.
[Hint: Use proof by contradiction]
A transversal intersects two parallel lines. Prove that the bisectors of any pair of corresponding angles so formed are parallel.
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