Question

The area of a a trapezium shaped field is 480m^2, the distance between two parallel sides is 15m and one of the parallel side is 20m. find othar parallel side​

Answer 1

Area of trapezium = sum of parallel side/2 *height

let the other parallel side be x

480 = ({20+x}/2)*15

480/15 ={20+x}/2

(480*2) / 15=20+x

(960/15)-20=x

64-20=x

44=x

other parallel sides =44m

Answer 2

$\bold\red{HERE\:IS\:YOUR\:ANSWER\::-}$

LET UNKNOWN PARALLEL SIDE BE = X

AREA OF TRAPEZIUM = 1/2 × HEIGHT × ( P1 + P2)

480 = 1/2 × 15 × ( 20 + X)
$\frac{480 \times 2}{15} = 20 + x \\ \\ 32 \times 2 = 20 + x \\ \\ 64 - 20 = x \\ \\ 44 = x$
$\bold\blue{ANSWER\:= 40cm}$