21.5.......:::..............:.::.::..
When you arrange the N points in sequence around the polygon (clockwise or counterclockwise), the area is half the magnitude of the sum of the determinants of the points taken pairwise. The N determinants will also include the one involving the last point and the first one.
For example, consider the vertices of a triangle: (1,1), (2,3), (3,-1). Its area can be computed as
(1/2)*|(1*3-1*2) +(2*-1-3*3) +(3*1-(-1)*1)|
= (1/2)*|1 -11 +4| = 3
Answer:
0 is a rational number, whole number, integer, and a real number.
Step-by-step explanation:
Answer:
To divide 0.8 divided by 20 she needs to annex a 0 in the hundredths place. So, the quotient is 0.04, and Carly is correct
Answer:
<h2><u><em>withdraw</em></u></h2>
Step-by-step explanation:
<h2>
<u>Can u gimme brain plz?</u></h2>