Question 11 Mark
Circle the pairs that appear congruent.
Answer
View full question & answer→(a) and (d) are congruent. As they can be superimposed exactly.
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Question 21 Mark
Given that CD and AB are parallel, and AB = CD, what are the other equal parts in this figure?
(Hint: When the lines are parallel, the alternate angles are equal. Are the two resulting triangles congruent? If so, express the congruence.)
(Hint: When the lines are parallel, the alternate angles are equal. Are the two resulting triangles congruent? If so, express the congruence.)
Answer
View full question & answer→Given that DC || AB; AB = CD
∠OCD = ∠OAB; ∠OBA = ∠ODC (∵ Alternate Angles)
∠DOC = ∠BOA
OA = OC; OB = OD
∠OCD = ∠OAB; ∠OBA = ∠ODC (∵ Alternate Angles)
∠DOC = ∠BOA
OA = OC; OB = OD