SA=4pir^2
78.54km^2=SA
78.54=4pir^2
divide both sides by 4
19.635=pir^2
aprox pi=3.14 so divide both sides by 3.14
6.25318=r^2
sqrt both sides
2.50063=r
round
radius=2.5km
this question is flawed in that it gives the wrong units
answer is the option with 2.5 in it
2nd one
It shows the Ora scale for area multiply width and length
Answer:
AB=9.49
Step-by-step explanation:
plz mark as brainliest if it helps
Answer:
thật ngu ngốc
Stethật ngu ngốcp-by-step explanation
18÷19=0.94736....................