Distribute
(x-3)(x+9)=-27
x^2+6x-27=-27
add 27 to both sides
x^2+6x=0
factor out x
x(x+6)=0
set each to zero
x=0
x+6=0
x=-6
x=0 and or -6
x=-6 or 0
B x h = triangle area
triangle area= 160
height= 10
b x 10 (divide it by) 2= b
160 x 2 (divide it by) 10= b
32= b
the height of the this triangle is 32
L1: 52
L2: 28
L3: 52
L4: 28
L5: 52
L6: 28
L7: 28
L8: 52
Hope this helps :)
Perimeter= 2(2x+2)+2(2x-1)
Area=(x-1)*(x-1)+(2x-1)*(x+3)
Hope it helps
