Apizza restaurant offers 21 toppings. how many 5-topping pizzas can be created if each topping can be used only once?

hi, i am not sure about this one but i think its d,

hope this !

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.