Question

Area the area of a Trapezium is 385 CM square its parallel sides are in the ratio 3 is to 4 and the perpendicular distance between them is 11 cm its longest side is what

Answer 1

Answer:

40

Step-by-step explanation:

according to formula

1/2 X(3x +4x) X11 =385

or  7x =70

or  x =10

longest side is 4X10=40

Answer 2

Answer: the longer side is 40 cm

Step-by-step explanation:

Let b1 be 3x and b2 be 4x

Area=1/2*(b1 +b2)*H

385= 1/2*(3x +4x)* 11

385*2 =7x *11

770= 7x * 11

7x = 770/11 = 70

x= 70 /7=10

B1 = 3*10=30 cm

B2 = 4* 10 =40 cm

So, the longer side will be b2 that is 40cm.

Hope it helps