Answer:
8 centimeters.
Step-by-step explanation:

Divide 3 both sides:

Multiply 4 on both sides:

8cm on the map represents 20km.
Answer:
I'm not sure what the answer is but, I'm thinking the answer w
Answer:
It should be 324.
Step-by-step explanation:
10 and -4. You multiply 10 times -4 to get -40 and you add 10 and -4 to get 6
Area = π r²
area of the required sector = (80/360) π * 15²
≈ 157.08