For #9 - 14, for each of the regular polygons, find the sum of the measures of the inte and then find the measure of each interior angle.
Pentagon:
9. Sum = a) 360
b) 480 C) 540
d) 620 e) 700
10. Each = a) 72
b) 96
c) 108
d) 124 e) 140
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Nonagon:
11. Sum = a) 1035 b) 1090 1165
12. Each = a) 115 b) 121
d) 1225 e) 1260
d) 136
e) 140
c) 130
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18-gon
13. Sum = a) 2720 b) 2880 C) 3040 d) 3200 e) 3360
14. Each = a) 120 b) 140
c) 160 d) 180 e) 200

9. c) 540

10. c) 108

11. e) 1260

12. e) 140

13. b) 2880

14. c) 160

Step-by-step explanation:

The formula to calculate the sum of the interior angles of a polygon is:

(number of sides/angles - 2)*180°

9. a pentagon has 5 sides/angles

(5-2)*180

= 3*180

= 540 (c)

10. Because there are 5 angles, divide the total sum of interior angles by the number of angles.

540/5 = 108 (c)

11. a nonagon has 9 sides/angles

(9-2)*180

= 1260 (e)

12. (same steps as #10)

1260/9 = 140 (e)

13. an 18-gon has 18 sides/angles

(18-2)*180

= 2880 (b)

14. (same steps as #10 and #12)

2880/18 = 160 (c)

Once again, I'm sorry I did not see your notification. Still hope this helped though.

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "

answer: a. 13/44

step-by-step explanation: judging by the information given to us, we are looking for experimental probability. we can see that 13 males have chosen chocolate ice cream. there are 44 ice creams in total (remember that the total is always the denominator). so our answer is 13/44.