1. ΔABC is right angled at B. BD is an altitude. AD = 9 cm and DC = 16 cm. What is the value of BD (in cm)?
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By: anil on 05 May 2019 01.46 am
Given : AD = 9 cm and DC = 16 cm To find : BD = ? Solution : In $$ riangle$$ ABC => $$(BD)^2=(AD) imes(DC)$$ => $$(BD)^2=9 imes16=144$$ => $$BD=sqrt{144}=12$$ cm => Ans - (D)
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Given : AD = 9 cm and DC = 16 cm To find : BD = ? Solution : In $$ riangle$$ ABC => $$(BD)^2=(AD) imes(DC)$$ => $$(BD)^2=9 imes16=144$$ => $$BD=sqrt{144}=12$$ cm => Ans - (D)