Which postulate proves these two triangles are congruent?
A. HL
B. SSA
C. None, not congruent
D. SAS
Can someone pls help me ASAP and help me on the other questions I posted pls !

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1

thats not a system of equations, that is a solution