Answer:
-9 degrees.
Subtract 20 from 11 to get -9.
a = 5
Step-by-step explanation:
a/4 = 15/12
We can use cross products to solve
a* 12 = 4*15
12a = 60
Divide each side by 12
12a/12 = 60/12
a =5
50.24m²
area of circle
= 3.14 × r²
= 3.14 × 4 × 4
= 50.24
18.78
x*(100%-8%)=17.28
x=18.78
