Answer:
360
Step-by-step explanation:
Formula
Sides -2 ×180
4-2=2×180=360
Part A:
The circumference of the circle is 197.92.
Explanation:
The formula for circumference of a circle is C=2 πr. If you insert the numbers, it would be C=2 x 3.14 x 31.5. Hence, the answer is 197.92.
Part B:
The area is 3117.25 square cm.
Explanation:
The formula for area of a circle is A= πr ². Inserting the numbers, it is A=3.14 x 31.5 ². Therefore the answer is 3117.25 cm ².
Answer:
<u>Step 1: Divide both sides by 5</u>
<u />

So... the line underneath the > means that 7 is included. Therefore, Frances is correct.
6/3 = 2
10^4/10^-5 = 10^9
so it's 2 x 10^9
answer
<span>A 2 × 10^9</span>