Question

Find the area of the regular polygon. Round your answer to the nearest tenth.
the individual sides are 10 the radius is 13.07

Answer 1

radius to what where with center where?

Answer 2

the 10 is on one of the lines of the polygon then a line from the center
goes from the center to the edge of polygon inside with a doted line

Answer 3

does that help


please help me with this

Answer 4

http://www.mathsisfun.com/geometry/regular-polygons.html

Answer 5

If your radius is to the corners, then
10 = 2* 13.07 sin (180/n)
sin (180/n) = .382555
180/n = 22.5
n = 8 sides
360/8 = 45 = top angle of each isoceles triangle
half of that has hpotenuse of 13.07 and base of 5
area of each of those 16 triangles = (1/2) (5)(13.07 cos 22.5) = 30.2
16*30.2 = 483

Answer 6

thank you

Answer 7

If your radius is to the center of each side then
tan (360/2n) = 5/13.07
180/n = 20.93
n = 8.59 sides
I doubt if that is what it means so use my previous answer.

Answer 8

this is the anzer///////////////69

Answer 9

Trigonometry and Area Practice

1.) D, 173.8
2.) A, 7,554
3.) A, 311.3
4.) C, The area of pentagon A is equal to 1.53 times the area of pentagon B.
5.) D, 48.2
6.) C, 237.8
7.) C, 20.8
8.) A, 29.7
9.) D, $51.96
10.) C, 24in

amosc :) - annee-mrie