X-5y=2 and 4x+2y=8 using elimination

y=0  x=2

Step-by-step explanation:

x=2+5y

and

x=2-y/2

Step-by-step explanation:

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.