Answer:
A B C D is similar to F G H E
Step-by-step explanation:
Here we can see that
A= F= 110 degrees
B = G= 70 degrees
C= H = 110 degrees
D= E = 70 degrees
Therefore
A B C D is similar to F G H E
so the option 3rd correct.
We can solve this using substitution.
because x-y=2.5
x=y+2.5
Now substitute x into other equation.
2(y+2.5)^2-2y=125
2y^2+10y+12.5-2y=125
2y^2+8y-112.5=0
Now comes the ugly part
y=-4+-sqrt(16+900)
y=-4+-sqrt916
y=-4+-2sqrt229
x=-1.5+-2sqrt229
A=pi(r)^2
45=pi(r)^2 divide by pi (3.14)
14.33=r^2 square root both sides
3.79=r round
r=4
