Question

the lengths of the parallel sides are in the ratio 7:9. Its area is 960 cm and the distance between the parallel sides is 15 cm. Find the length of each of the parallel sides.​

Answer 1

IF U ARE CONSIDERING IT A TRAPEZIUM

THEN

AREA =SUM OF PARALLEL SIDES×DISTANCE BETWEEN THEM

LET L1 & L2 BE THE TWO PARALLEL SIDES

HENCE L1=L2×7/9. (1)

960=(7/9L2+L2)×15

64=16/9 L2

HENCE L2=64×9/16

PUT THIS IN EQUATION 1.

you will get L1