Question

2. The area of a trapezium is 686 cm?. If one of the parallel sides exceeds the other by 7 cm
and the distance between the parallel sides is 28 cm. Find the length of two parallel sides
of the trapezium​

Answer 1

Answer:

smaller is 6.125 and larger is 13.125

Step-by-step explanation:

let smaller be x and bigger be x+7 so,

area= sum of parallel sides * distance between them

686=1/2*(x+7+x)*28

x=6.125

7+x = 13.125

Answer 2

Answer:

21 ,28

Step-by-step explanation:

let the side be x and another be x+7

area of trapezium =1÷2( sum of parallel side) ×distance between the parallel side. 686=1÷2 (x+x+7) × 28. 686 = 1÷2 (2x+7) ×28. 686×2÷28 =(2x+7). 49=2x+7. 49-7=2x. 42=2x . x=42÷2=21. x+7 =21+7= 28