In ∆ABC AC=8cm, BC =4cm and height AM =5cmfind I) the area of ∆ABC II)Altitude BN

In ∆ABC AC=8cm, BC =4cm and height AM =5cmfind I) the area of ∆ABC

1.	In ∆ABC AC=8cm, BC =4cm and height AM =5cmfind I) the area of ∆ABC II)Altitude BN
Answer» -step explanation:GIVEN : In △ABC, AB=4 cm and AC=8 cm.M is the MIDPOINT of BC and AM=3 cmUsing APOLLONIUS theorem,AB 2 +AC 2 =2(AM 2 +BM 2 )⟹ 4 2 +8 2 =2(3 2 +BM 2 )⟹ 16+64=2(9+BM 2 )⟹ BM 2 =31⟹ BM= 31 .∵ BC=2BM∴ BC=2 31 .

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In ∆ABC AC=8cm, BC =4cm and height AM =5cmfind I) the area of ∆ABC II)Altitude BN​

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In ∆ABC AC=8cm, BC =4cm and height AM =5cmfind I) the area of ∆ABC II)Altitude BN