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Question

In the given figure, BC=DC and ABC and ADC are right angles. Which of the following statements are correct?


A

ΔABCΔADC by SAS postulate

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B

ΔABCΔADC by ASA postulate

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C

ΔABCΔADC by RHS postulate

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D

AC bisects BAD

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Solution

The correct options are
C

ΔABCΔADC by RHS postulate


D

AC bisects BAD


In ΔABC and ΔADC

(i) ABC=ADC=90 ……….(given)

(ii) AC=AC ………(common)

(iii) BC=DC ………(given)

(iv) ΔABCΔACD …… (RHS postulate)

(v) BAC=DAC ……..(cpct)

(vi) therefore AC bisects BAD ….. (from (v) )

Ans: Hence (C) and (D)


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