Question

The area of a trapezium is 340 and perpendicular distance between parallel sides is 17cm if one of the parallel sides is 18 cm find other side

Answer 1

Answer:

22cm

Step-by-step explanation:

area =1/2*base*sum of parallels

340=1/2*17*(18+x)

340*2=17(18+x)

680/17=18+x

40-18=x

x= 22cm

Answer 2

Answer:

Formula 1/2 X sum of parallel sides X distance between them.

Step-by-step explanation:

1/2 X (18+x) X 17

Area of trapezium = 340cm square

340 = 1/2 X (18+x) X 17

340X2 = (18+x) X 17

680 = (18+x) X 17

680/17 = 18+x

40 = 18+x

x = 40-18 = 22

Answer is = 22cm