Two poles of heights 6m and 11m stand vertically on plane ground .if the distance between their feet is 12m ;find the distance between their tips.

Two poles of heights 6m and 11m stand vertically on plane ground .if the distance between their feet is 12m ;find the distance between their tips. given ngurr. the diagonals A C And n D at O. Ir 0B 00 thal Area Area AOBb (iii Area DCB) ACT). (iiij ABCD is a parallelogram given figure shows a parallelogram ARCO With arc-a sq. cm. P is a in AR such 2. F,nd (i) the area of APO. (ii) the ratio OP : OD In the parallelogram ABCD. the side AB is to the Bjint X, so that BX = AB. nr line BC E. prove (i) DBXC is a parallelogram. Area (A AED) = 2 area (ACE_X). 4- In A ABC. E and F are of sides AB and AC respectively. If BF and CE intersect each other at point O, prove that the A OBC and quadrilateral AEOF are equal in area. O. Of POB z find Boc PBc (iii' Area, A ABC OH: medians or a triangle ABC interu:rt other point Ci. one of iB medians i' prove thal - Area ABD' Area BGDj Area ACDi Area (CGD' Area - x 7. In ABC. E is mid-point of side AB and EBCD i' a parallelogram, If the arca of A ABC is 80 ern2, find the parallelogram EBCD, The perimeter of a triangle ABC is and ratio the lengths of allinuk 5 4. Find the lengths of iLs sides. Let the sides be y cm and — y) cm. Alu'. let the lengths Of altitudes cm.5acm and au cm base x altitude • Area of a triangle = — x x x 60 —xyx5a—-; FIN of all wove that •..r BOE = Ar. of COF A BOE.ACBF = and = 148 — — O and I Ox + 148 9. In the given figure, E is mid-pouu ot DE meets diagonal AC at F If •a is a parallelogram o and area of S ADF rs 60 find . -A coy