Answer:2,460
Step-by-step explanation:
Just use a calculator
820x3=2,460
Answer:
A≈3.06
P Perimeter
7
Using the formulas
A=a2
P=4a
Solving forA
A=1
16P2=1
16·72=3.0625
30 more students
690 + 30 = 720
720 / 9 = 80
The formula for area of a circle is π x r^2
r = radius = 7 cm.
Area = 7^2 x π
Area = 49π cm²
