In the given figure, DE || AC and DF || AE Prove that `(BF)/(FE) = (BE)/(EC)` .

In figure DE|| BC and CD||EF. Prove that AD^(2)=AB xx AF .

In the given figure, if x + y = w + z, then prove that AOB is a line.

In the figure, if BD bot AC and CE bot AB , prove that (i) Delta AEC~ Delta ADB " " (ii) (CA)/(AB)=(CE)/(DB)

In the adjoining figure, chord AB ~= chord CD . Prove that arc AC ~= BD

In the given fig. if AD bot BC Prove that AB^(2) + CD^(2) = BD^(2) + AC^(2) .

In the given figure AB || CD, BC || DE then find the values of x and y

In the adjoining figure, seg BD bot "side" AC, C-D-A. "Prove that" : AB^(2) = BC^(2) + AC^(2) - BC.AC

In the given figure, the point P bisects AB and DC. Prove that DeltaAPC ~= DeltaBPD (NCERT_TAM_MAT_IX_C07_E01_008_Q01.png" width="80%">

Measurements of the some angles in the figure are given . Prove that (AP)/(PB)=(AQ)/(QC)

In the Fig. AD and BE are medians of DeltaABC and BE"||"DF . Prove that CF=(1)/(4)AC.