in traingle ABC ,AB is 22 cm and AC is 19 cm .BD and CE are two medians intersect at 90 degree .find BC
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Step-by-step explanation:
AB=19cm, AC=22cm,
∵ BE⊥CF(Given),[Medians CF & BE are perpendicular to each other]
⇒ In this case
⇒ We know,
AB^2+AC^2=5(BC)^2
⇒19^2+(22)^2=5(BC)^2
⇒361+484=5(BC)^2
⇒845=5(BC)^2
⇒(BC)^2=169
⇒BC=13cm
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