Question

The area of a paralllelogram whose diagonal is 6.i cm and the perpenficular distance of this diagonal from qn opposite vertex is 7.5 cm

Answer 1

we know diagonal divide parallelogram in to two congruent triangle and area of congruent triangle are equal
in other word we can say diagonal decide parallelogram in two equal are triangle 
area of triangle =1/2 basex height 
=1/2 x6.8x7.5 square cm 
area of parallelogram will be equal to area of two triangle 
area of parallelogram =2x1/2x6.8x7.5= 6.8x7.5 =51.00 square cm 
Answer 51.00 square cm