5. The temperature in Alaska varies greatly from midnight to noon. The temperature at midnight was - 47°F. By noon, the temperature rose 39°F. What was the temperature in
Alaska at noon?

-8

Step-by-step explanation:

Add 39 to -47

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.