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Syllabus

Q.74. In the parallelogram ABCD, M is mid-point of AC and X, Y are points on AB and DC respectively such that AX = CY.

Prove that :

(i) triangle AXM is congruent to triangle CYM,

(ii) KMY is a straight line.

(i) the actual length of the diagonal distance AC of the plot in km.

(ii) the actual area of the plot sq km.

^{0.5}: 1 ( 3^{0.5}= square root of 3)Please do not provide any link.

If AO = 2CO and BO = 2DO; show that:

(i) ∆AOB is similar to ∆COD.

(ii) OA × OD = OB × OC.

Q. In triangle PQR, MN||QR and $\frac{PM}{MQ}=\frac{2}{3}$

(i) Find $\frac{MN}{QR}$

(ii) Prove that triangle OMN and ORQ are similar

(iiI) Find, area of triangle OMN : area of triangle ORQ

1. the actual length of the diagonal distance AC of the plot in km.

2. the actual area of the plot in sq km.

(i) the length of PQ, if BC=7.5cm.

(ii)the area of triangle APQ: area of triangle ABC

(iii)the area of triangleAPQ:area of PBCQ

(b) In $\u2206$PQR, MN is parallel to QR and

$\frac{PM}{MQ}=\frac{2}{3}$

(i) Find

$\frac{MN}{QR}$

(ii) Prove that $\u2206$OMN and

$\u2206$ORQ are similar.

(iii) Find , Area of $\u2206$OMN : Area of $\u2206$ORQ

$14.PistheorthocenterOf\u2206ABC.ShowthatAistheorthocenterof\u2206PBC.\phantom{\rule{0ex}{0ex}}15.Histheorthocentreof,\u2206ABCX.YandZarerespetiveIythemid-pointsofAH,BH\phantom{\rule{0ex}{0ex}}andCHshowthatHisalsotheof\u2206XYZ.$