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21. In a triangle ABC angle B=45° and angle A-90° .The pair of equal sides are. a) AB and AC b) BC and AB c) BC and AC d) None of the above |
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Answer» △ABC and △PQR∠C=∠P (Given)∠B=∠Q (Given)∠A=∠R (Third angle of the triangle)THUS, △ABC∼△PQRAlso, given, AB=ACThus, ∠B=∠C (Isosceles triangle PROPERTY)But, ∠B=∠Q and ∠C=∠PHence, ∠Q=∠Por PR=QR Thus, both the triangles are Isosceles but not CONGRUENT. |
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