Question

the area of trapezium is 78 CM square and one of their expeller side is 67 find the other parallel side if the altitude is 12 CM​

Answer 1

Answer:

Area= 78 cm

A=67 cm

B=?

H=12 cm

Area= 1/2*h(a+b)

78 = 6*(67+b)

78 = 6*67+6*b

78 = 402+6b

402-78=6b

324=6b

54=b

answer is b= 54

or

Therefore , The other parallel side is 54 cm.