Write the standard form of the equation of the circle with the given center and radius.
center (-6, -8), r= 10

make the standard form of the circle taking the negative values of the respective x,y coordinates of the centre and the radius

(x+6)^2+(y+8)^2=r^2

(x+6)^2+(y+8)^2=100

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.