Question

The area of trapezium is 405cm² . Its parallel sides are in the ratio 4 : 5 and the distance between them is 18cm . Find the length of each of the parallel sides

HELP ME PLEASE☝​

Answer 1

Answer:

area of trapz=(a+b)*height/2

a,b are lengths of parallel sides

let parallel sidws be 4x,5x

now

405=9x*18/2

x=5

length of parallel sides 4x=20

5x=25

Answer 2

Step-by-step explanation:

area of trapezium = 1/2 × height × ( sum of ll sides)

405 = 1/2 × 18 × (4x+5x)

405×2 = 18 ×9x

810 = 18 × 9x

9x = 810/19

9x = 90

x = 90/9

x = 10

so parallel side 4x and 5x = 40 and 50 respectively