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If for ∆ABC and ∆DEF, the correspondence CAB ↔ EDF gives a congruence, then which of the following is not true? (a) AC = DE (b) AB = EF (c) ∠A = ∠D (d) ∠C = ∠E

The correct answer is (b) AB = EF Justification Given that ∆CAB ≅ ∆EDF ∴ AC = DE AB =... View Article

The correct answer is (b) 100° Justification Let us consider the triangle ABC We know that, from the angle sum... View Article

The correct answer is (c) 40o Justification Let us consider the triangle ABC, From the figure, we observe that AD... View Article

The correct answer is (d) ∠ 1 + ∠ 2 = ∠ 3 + ∠ 4 Justification From the property... View Article

The correct answer is (d) has its altitude outside the triangle

The correct answer is (b) AC2 = AB2 + BC2 Justification (b) AC2 = AB2 + BC2 … From Pythagoras theorem, we know that If... View Article

The correct answer is (b) 4 cm Justification From Pythagoras theorem AC2 = AB2 + BC2 52 = AB2 + 32 AB2 = 25 –... View Article

The correct answer is (d) 6 cm Justification We know that, The sum of the lengths of any two sides... View Article

The correct answer is (d) 70°, 60° Justification We know that the exterior angle is the sum of the interior opposite... View Article

The correct answer is (a) Median Justification A line segment that joins any vertex of the triangle and the mid-point... View Article

The correct answer is (b) 3 Justification We know that the altitude of a triangle is the perpendicular drawn from... View Article

The correct answer is (c) 5 cm Justification We know that, The sum of the lengths of any two sides... View Article

The correct answer is (d) 40°, 132°, 18° Justification We know that sum of angles of a triangle is equal... View Article

The correct answer is (c) 100o Justification As we know that, the exterior angle is the sum of opposite interior angles.... View Article

The correct answer is (b) BE Justification We know that the median of a triangle divides the opposite side into two... View Article

The correct answer is (d) 145o Justification From the question, it is given that, one of the angles of a triangle... View Article

The correct answer is (b) 65o Justification Let us assume the interior opposite angles are Q and Q. Then, 130o =... View Article

The correct answer is (c) right Justification A right triangle is the one in which the measure of any one... View Article

The correct answer is (a) 50° Justification From the question, it is given that, ∠BAC = 90o AD ⊥ BC and... View Article

The correct answer is (b) 40o Justification Consider the ΔPQR. From the exterior angle property ∠RPU = ∠PRQ + ∠PQR... View Article