Answer:
20.25 m²
Step-by-step explanation:
the area (A) and circumference (C) of a circle are calculated using the formulae
C = 2πr and A = πr² ( where r is the radius )
calculate the radius using the formula for circumference
2πr = 9π ( divide both sides by 2π )
r =
=
= 4.5, hence
A = π × 4.5² = 20.25π m²
Answer:
minimum 380 student tickets must be sold.
Step-by-step explanation:
c) 500x7=3500
intended =5400
5400-3500=1900
1900/5= 380
Answer:
36 centimeters
Step-by-step explanation:
Since one side is 60 centimeters, just divide by 20 and get 3
Then multiply 12 by 3 and get 36
I hope this helps!
Answer:
348m
Step-by-step explanation:
I took the k12 test