Let `ABCD` be rectangle and Let E & F be points on CD & BC respectively such that Area `(ADE) = 16,` area `(CEF) = 9,` and area `(ABF) = 25.` the area of ADF=t, then `[t/15]` is

In the figure, ABCD is a rectangle. Points E and F cut the sides BC and CD of the rectangle respectively such that EC = 3, FC = 4, and AD = 12, and the area of the crossed and the shaded regions in the figure are equal. Which one of the following equals the perimeter of rectangle ABCD?

In the figure, ABCD is a rectangle, and F and E are points on AB and BC respectively. The area of Delta DFB is 9 and the area of Delta BED is 24. What is the perimeter of the rectangle?

Let ABCD be a rectangle. Let P, Q, R, S be the mid-points of sides AB, BC, CD, DA respectively. Then the quadrilateral PQRS is a

In a figure, ABCD is a rectangle and P & Q are mid-points of CD and BC respectively. Find ratio of area of shadow region and area of un-shad-owed region?

If ABCD be a rectangle and P, Q, R, S be the mid-points of AB, BC, CD and DA respectively, then the area of the quadrilateral PQRS is equal to

Let ABC be a triangle such that AB = 4, BC = 5 and CA = 6. Choose points D,E,F on AB, BC, CA respectively, such that AD = 2, BE = 3, CF=4. Then ("area"DeltaDEF)/("area"DeltaABC) is

In the figure, ABCD is a square. E and Fare midpoints of AD and BC respectively. The ratio of areas of Delta GAB and Delta HAB

Let P be an interior point of a convex quadrilateral ABCD and K, L, M, N be the midpoints of AB, BC, CD, DA respectively. If Area(PKAN)=25, Area(PLBK)=36, and Area(PMDN)=41 then Area(PLCM) is

In a triangle ABC, D and E are points on AB, AC respectively such that DE is parallel to BC. Suppose BE, CD intersect at O. If the areas of the triangles ADE and ODE are 3 and 1 respectively, find the area of the triangle ABC, with justification