Question

Please help it’s multiple choice! ( show ur work please )

Answer 1

Answer:

I think its 12

Step-by-step explanation:

because these half angels are equal to 30,90, and 60

if you are looking for AD then we have half of 10 which is 5

So then we had 5+13=18

If we add 18+12 it will equal to 30

and if we add them all up 13+10+12+13=48

and acute angle-an angle can equal to anything below 90

I think this is correct