1) 1000 / 100 ⇒ 10 / 1 = 10
1000 ÷ 100 = 10
100 ÷ 100 = 1
2) 9/81 ⇒ 1/9
9 ÷ 9 = 1
81 ÷ 9 = 9
3) 4/64 ⇒ 1/16
4 ÷ 4 = 1
64 ÷ 4 = 16
<em>C</em>≈24.81<em>A</em>=<em>πr</em>2
<em>C</em>=2<em>πr</em>
Solving for<em>C</em>
<em>C</em>=2<em>πA</em>
=2·<em>π</em>·49
≈24.81435
For Right angled triangle area
A=ab/2
(2x-2)(4x+2)/2
(8x^2+4x-8x-4)/2
(8x^2-4x-4)/2 take common term 2
2(4x^2-2x-2)/2
So A=4x^2-2x-2
The average, median and mode of a list of numbers will be the same when the middle (or mean of the two middle numbers) is equal to the most common number in the list, and that number is also the mean.
