" In Fig."4.142,PA,QB" and "RC" are each perpendicular to "AC" .Prove that "(1)/(x)

In Fig. 4.142, P A ,\ Q B and R C are each perpendicular to A C . Prove that 1/x+1/z=1/y . (FIGURE)

The equilateral triangles are drawn on the sides of a right triangle. Show that the area of the triangle on the hypotenuse is equal to the sum of the areas of the triangles on the other two sides. OR In the given figure, PA, QB and RC are each perpendicular to AC. Prove that 1/x+1/z=1/y

In the given figure, PA, QB and RC each is perpendicular to AC such that PA=x, RC=y, QB=z, AB=a, and BC=b Prove that (1)/(x)+(1)/(y)=(1)/(z)

14 In Fig. 6.21, PA, QB Rc and SD are all perpendiculars to a line l, AB 6 cm, Bc 9 cm, CD 12 cm and SP 36 cm Find PO, QR an RS. Fig. 6.21

14 In Fig. 6.21, PA, QB Rc and SD are all perpendiculars to a line l, AB 6 cm, Bc 9 cm, CD g cm and SP 36 om Find PO, QR an RS. Fig. 6.21

In the above figure, seg PA, seg QB and seg RC are perpendicular to seg AC. From the information given in the figure, prove that: (1)/(x) + (1)/(z) = (1)/(y)

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

In Fig.6.61, two chords AB and CD intersect each other at the point P.Prove that :(ii)PA.PB=CP.DP