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Question
Which of the following pairs of triangles are congruent? Give reasons
ΔABC;(∠B = 70°,BC = 6cm,∠C = 50°);
ΔXYZ;(∠Z = 60°,XY = 6cm,∠X = 70°).
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Solution
In ΔABC and ΔXYZ
∠B = ∠X
BC = XY
∠Y = 180° - (70° + 60°) = 50°
∠C = ∠Y
Therefore,
ΔABC ≅ ΔXYZ ...(ASA criteria).
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