ABCD is a parellogram in which BC is produced to E such that CE=BC.AE intersectsCD at F.if ar (DFB)=3cm'2.find the area of the parallelogram ABCD
Answers
Answered by
8
see here in the triangle DFB and CFB
proof that both are congruent to each other.
now DF=FC (by cpct)
so if the area of DFB is 3cm^2
area of the triangle DBC is 3×2cm^2
" , " "" is 6cm^2
Now area of the parrallogram ABCD is 2ar (DBC)
Area of the parallelogram ABCD =2×6cm^2
Area of the parallelogram ABCD is 12 cm^2
HOPE ITS HELP YOU.
HI BROTHER I THINK ITS FROM CLASS 9 TH OF CBSE NCERT BOOK
proof that both are congruent to each other.
now DF=FC (by cpct)
so if the area of DFB is 3cm^2
area of the triangle DBC is 3×2cm^2
" , " "" is 6cm^2
Now area of the parrallogram ABCD is 2ar (DBC)
Area of the parallelogram ABCD =2×6cm^2
Area of the parallelogram ABCD is 12 cm^2
HOPE ITS HELP YOU.
HI BROTHER I THINK ITS FROM CLASS 9 TH OF CBSE NCERT BOOK
Similar questions