Question

the distance between two parallel side of a trapezium of area 441sq.cm is 18cm if one of the sides is 28cm find the other side

Answer 1

Answer:

answer is 21

Step-by-step explanation:

area of a trapezium is 1/2 (sum of parallel sides) * h

so 1/2 (28 +x) * 18 = 441

(28 + x) * 9=441

(28 + x) = 441/9

(28 + x) = 49

x = 49 - 28 = 21

Answer 2

answer - 21

explanation-

let the other side be x

441=1/2[x+28]18

441=[x+28]9

441=9x+9*28

441=9x+252

9x=441-252

9x=189

x=189/9

x=21