please prove it kindly question no -7
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(Tri=triangle)
1) In tri ABD, E is mid point of AB and F is mid point of AD
By mid point theorem, EF||BD
Taking AC as transversal, as AC is perpendicular to BD, AC is also perpendicular to EF...
Similarly, in tri ACD, as FG||AC and FE is perpendicular to AC, thus angle EFG=90°
2) If GH||FE, also, GH||BD...
so in tri BCD, by inverse of mid point theorem, H is midpoint of BC, i.e., H bisects BC
1) In tri ABD, E is mid point of AB and F is mid point of AD
By mid point theorem, EF||BD
Taking AC as transversal, as AC is perpendicular to BD, AC is also perpendicular to EF...
Similarly, in tri ACD, as FG||AC and FE is perpendicular to AC, thus angle EFG=90°
2) If GH||FE, also, GH||BD...
so in tri BCD, by inverse of mid point theorem, H is midpoint of BC, i.e., H bisects BC
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