Answer:
Solution given:
r=3km
area of sector bounded by a 90° arc=90°/360°*πr²
=¼*π*3²
=<u>9/4 π or 7.068km²</u>
is a required answer
50% of 18 = 9
so buy 1 for 18 and 1 for 9 = 18+9 = 27 for 2 sheets
6/2=3
27 x 3 = 81 for 6 sheets
The answer is less than :)
$114.76 since he only used 24 cents. It's basic subtracting so it should be easy
