In triangle `A B C ,` dedians `A Da n dC E` are drawn. If `A D=5,/_D A C=pi/8,a n d/_A C E=pi/4` , then the area of the triangle `A B C` is equal to `(25)/9` (b) `(25)/3` (c) `(25)/(18)` (d) `(10)/3`

In triangle ABC medians AD and CE are drawn,if AD=5,/_DAC=(pi)/(8) and /_ACE=(pi)/(4), then the area of triangle ABC is equal to a.(25)/(8) b.(25)/(3) c.(25)/(18) d.(10)/(3)

IF the lengths of the side of triangle are 3,5A N D7, then the largest angle of the triangle is pi/2 (b) (5pi)/6 (c) (2pi)/3 (d) (3pi)/4

In triangle A B C , if b=3,\ c=4\ a n d\ /_B=pi/3, then number of such triangle is 1 (b) 2 (c) 0 (d) infinite

Let A B C D be a tetrahedron such that the edges A B ,A Ca n dA D are mutually perpendicular. Let the area of triangles A B C ,A C Da n dA D B be 3, 4 and 5sq. units, respectively. Then the area of triangle B C D is 5sqrt(2) b. 5 c. (sqrt(5))/2 d. 5/2

In quadrilateral A B C D show in Figure. A B D C a n d A D_|_A Bdot Also, A B=8m , D C=B C=5mdot Find the area of the quadrilateral.

If triangle A B C is similar to triangle D E F such that B C=3C M ,E F=4c m and area of triangle A B C=54c m^2 . Determine the area of triangle D E Fdot

A B C is a triangle. The coordinates of whose vertices (-2,4),(10 ,-2)a n d(-2,-8)dotG is the centroid of triangle A B C , then area of the triangle G B C is equal to 26 b. 36 c. 24 d. 39

The diagonals of quadrilateral A B C D , A C a n d B D intersect in Odot Prove that if B O=O D , the triangles A B C a n d A D C are equal in area.

In Fig.81, side B C of A B C has been produced to D and C E B Adot If /_A B C=65^0,\ /_B A C=55^0, find /_A C E ,\ /_E C D\ a n d\ /_A C Ddot

In Figure, A B C D is a parallelogram, A E _|_D C a n d CC F_|_A D . If A B=16 C M , A E=8c m a n d C F=10 c m , find A D