Explain Apollonius' Theorem. -Maths 9th

Explain Apollonius' Theorem. -Maths 9th
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Sohan wants to show gratitude towards his teacher by giving her a card made by him. He has three pieces of trapezium pasted one above the other as shown in fig. These pieces are arranged in a way that AB||HC || GD || FE. Also BC=CD=DE, and GF=6 cm... -Maths 9th

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