Answer:
A = 82.53 in²
Step-by-step explanation:
We use the circumference equation C = 2πr and the area equation A = πr².
Using the first equation and the given circumference (32 in), we find the radius of the circle, and then use this result to find the area of the circle.
C 32 in
C = 2πr becomes r = ----------- and here r = ---------- = 5.10 in
2π 6.28
Then the area of the circle is A = πr², which here is A = 3.14(5.10 in)², which, when rounded off to two decimal places, is A = 82.53 in²
Answer:
7854 cm²
Step-by-step explanation:
3.14 x 50² = 7850
Answer:
150 units^2
Step-by-step explanation:
A cube has all equal sides. This one has five units for every side.
There are 6 faces here, and 4 vertices for every face.
The equation would look like this 6 x side^2.
Which would also equal to 6 x 5^2.
If you do this, you will find that the answer is 150 units^2.
You flip the inequality.
Example: if x > -y and you divide both sides by (-1) then you flip the inequality so: -x < y