Use Pi, 3.14. Divide the Diameter by 3.14 and you should get your answer. That's all I know.
45.3+3.21=48.51 which is greater than,its important to add the decimals because u would never know with what number your working with on decimal occasions.
Answer: $1
Step-by-step explanation: (10 x 10) / 100 = 1
Answer:
1500km
Step-by-step explanation:
1cm=100km
15•100=1500km
We know that
the equation of a circle is
(x-h)²+(y-k)²=r²
where
(h,k)-----> is the center
r--------> is the radius
is the center is the point (0,0) and radius r=20
then
(h,k) is (0,0)
(x-0)²+(y-0)²=20²---------> (x)²+(y)²=400
the answer is
the option D.) x2 + y2 = 400
