the area of a trapezium shaped field is 480 m2 the distance between two parallel sides is 15 m an one of the parallel side is 20 m .find the other parallel side
Answers
Answered by
58
Area of Trapezium = 1/2 x sum of parallel sides x perpendicular distance
area = 480
height of one side = 20
sum of parallel sides = 15 + x
so,
480 = 1/2 (15 + x) x 20
480= (15+x) 10
480= 150 + 10x
480 - 150 = 10x
330 = 10x
330/10 = x
33 = x
Answered by
13
Step-by-step explanation:
Area of a trapezium : (sum of parallel sides/2)*height
let other parallel sides be x
so we get,
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
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