
Here's the solution ~
As we know, we can calculate the circumference of a circle in terms of its diameter as :

where, c = circumference and d = diameter
And also, circumference of circle is terms of radius (r) is :

Now, let's move on to questions ~
<h3>First </h3>


<h3 />
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<h3>Second</h3><h3 /><h3 /><h3 /><h3>

</h3>

・ .━━━━━━━†━━━━━━━━━.・
<h3>Third</h3>


・ .━━━━━━━†━━━━━━━━━.・
<h3>Fourth</h3>



・ .━━━━━━━†━━━━━━━━━.・
<h3>Fifth </h3>



・ .━━━━━━━†━━━━━━━━━.・
<h3>Sixth</h3>



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Answer:
iohji
Step-by-step explanation:
3 = $9.81
1 = $?
To find this you have to do 9.81/3.
Hope this helps and have a nice day!!
Answer:
Step-by-step explanation:
Angles 1 and 2 have common side, so they are adjacent. They are not making a right or straight angle.
Correct choice is D
Answer:
Step-by-step explanation:
a|c means that c=a*k k is some positive integer. We know that b|c so b| ak and (a,b)=1, so it must be b|k, i.e k=b*r, r is some positive integer number. Now we have that c=abr, so ab| c.
B) if x and x’ are both solution then we have that
mi | x-x’ for every i.
By a) we have that m1m2...mk| x-x’, so x and x’ are equal by mod od m1m2...mk.