Posted by **amit** on Wednesday, December 12, 2012 at 1:22pm.

ABCD is a parallelogram in which BC is produced to E suh that CE=BC.AE intersects CD at F.if ar(DFB)=3cm^2.

find the area of the parallelogram ABCD.

- maths --plse help me.. -
**Steve**, Wednesday, December 12, 2012 at 2:34pm
by similar triangles,

FC/AB = CE/BE = 1/2

so, F is the midpoint of CD

if the altitude of ABCD from AB to CD is h,

area(ABCD) = h*CD

area(DFB) = 1/2 * h * DF = 1/2 * h * CD/2 = 1/4 h*CD

so, area(ABCD) = 12

## Answer This Question

## Related Questions

- maths --plse help me.. - ABCD is a parallelogram in which BC is produced to E ...
- maths --plse help me.. - ABCD is a parallelogram in which BC is produced to E ...
- maths --plse help me.. - ABCD ia a parallelogram whose diagonals intersecting at...
- maths - ABCD ia a parallelogram whose diagonals intersecting at E. AC is ...
- maths --plse help me.. - ABCD IS A PARALLELOGRAM, G IS THE POINT ON AB SUCH THAT...
- maths --plse help me.. - ABCD IS A PARALLELOGRAM, G IS THE POINT ON AB SUCH THAT...
- Math - Let ABCD be a parallelogram. Extend line BC past B to F, and let E be the...
- maths - ABCD is a parallelogram. AB=9cm,BC=5cm and DE is perpendicular to AB.If ...
- Maths - area (triangle BCE )=75.2 meter square. Find area ( ABCD) where ABCD is...
- Geometry - Given: ABCD is a parallelogram; <1 is congruent to <2 To Prove...

More Related Questions