How to find the area of a polygon 7ft 22ft 10ft

For a 7 sided polygon we used

Area = 22ft x 7 = 154ft sq

For a 5 sided polygon

Step-by-step explanation:

We know the width maybe 22ft and at its widest.

IF we say 3 triangles can be fit into a polygon given 2 sides then we  180 x 3 = 560 degree if its 3 rectangles then if it is easier to make 4 rectangles if square shape we can subtract the smaller measures of the missing rectangle.

With triangles;

The number of triangles is always 2 less than that that of its sides.

= 3 triangles + 2 = 5 sides.

The sum of interior angles

(n-2) x 180 =  540 degree

5-2 x 180

To determine the amount of sides; we remember

(n-2) 180

360 = (n-2) 180

+360 =        180    -360 +180

+360 =         180   = (3 triangles with 180)

900/180 = 5 sides.              

If we say 5 triangles created with 3 given lengths

then same rule applies n-2 (180)

=7 sides

= if regular shape largest line 22 x 7 = 154 ft sq = Area.

cosine

step-by-step explanation: