225cm2. Ifone parallel side is 6 more than thrice the other and its he

1.	225cm2. Ifone parallel side is 6 more than thrice the other and its heighis 5 cm in length, find the lengths of the parallel sides
Answer» Let one parallel side s1 be xThen other parallel side s2 =3x + 6 Given, Height of trapezium h = 5 cmArea of trapezium A = 225 cm^2 Area of trapezium = 1/2(s1+s2)h225 = 1/2(x + 3x + 6)5450 = (4x + 6)54x + 6 = 904x = 84x = 84/4 = 21 Therefore,First parallel side length = x = 21 cmOther parallel side length = (3x + 6) = 321 + 6 = 69 cm

225cm2. Ifone parallel side is 6 more than thrice the other and its heighis 5 cm in length, find the lengths of the parallel sides

Answer»

Let one parallel side s1 be xThen other parallel side s2 =3x + 6

Given, Height of trapezium h = 5 cmArea of trapezium A = 225 cm^2

Area of trapezium = 1/2(s1+s2)*h225 = 1/2(x + 3x + 6)*5450 = (4x + 6)*54x + 6 = 904x = 84x = 84/4 = 21

Therefore,First parallel side length = x = 21 cmOther parallel side length = (3x + 6) = 3*21 + 6 = 69 cm