Question 873972
The area of parallelogram whose diagonal is 6.8 cm and perpendicular distance of this diagonal from an opposite vertex is 7.5 cm is ?
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