Answer:
(11x+7)(3x−2)
Step-by-step explanation:
to find height :
draw a height from A to CD
height = (13) 2 - 5) 2 = 12 Cm
area = 10+20 /2 X 12= 180 cm 2
N=12
x=20
(4x-12)+(x+2)=90
5x-10=90
5x=100
