a perimeter of a trapezium is 55cm and its non parallel sides are 8 cm and 7cm the difference between the length of parallel sides is 5 cm. find the lengths of the parallel sides

Answer 1

draw ur trapezium & let d shorter parallel side =y &d longer=x
perimeter of trapezium=7+8+x+y=55
and x -y=5
==>x=5+y
substituting
15+5+y+y=55
20+2y=55
2y=55-20
=35
y=17.5
x=22.5

Answer 2

384cm2