Question

i need some answers checked

Answer 1

@563blackghost

Answer 2

Thats correct :-)

Answer 3

@pooja195

Answer 4

The formula to find the interior angles of a polygon is (n-2)180
n=number of sides
(24-2)180=?

Answer 5

The answer you have is incorrect btw

Answer 6

3960

Answer 7

@Vocaloid hello?

Answer 8

good

Answer 9

good

Answer 10

good

Answer 11

hm not quite

(n-2)180 = 2880 solve for n

Answer 12

remember your distributive property

A(B-C) = A*B - A*C

180(n-2) = ?

Answer 13

410040

Answer 14

A(B-C) = A*B - A*C

following the pattern:

180(n-2) = 180*n - 180*2 = 2880

solve for n

Answer 15

2

Answer 16

180*n - 180*2 = 2880

multiplying 180 by 2 gives us 360
therefore:
180*n - 360 = 2880

add 360 to both sides

180n = 2880 + 360

now solve for n

Answer 17

18

Answer 18

good so 18-gon = your sol'n

Answer 19

it's the other one, convex

Answer 20

the sum of the exterior angles is 360

so you need to sum up all the angles, set them equal to 360, and solve for x

Answer 21

7?

Answer 22

(2x-5) + 29 + 67 + 36 + 32 + 75 + x + 54 = 360

solve for x

Answer 23

24

Answer 24

good so 24 = your sol'n

Answer 25

okay so all the sides have to add up to 360, right?

Answer 26

would this be 51?

Answer 27

be careful

for exterior angles, yes, the sum is 360

this question is asking about interior angles, which uses the formula

sum = 180(n-2)

since this is a heptagon it has 7 sides so n = 7

so sum = 180(7-2) = ?

Answer 28

900

Answer 29

good so 900 = your sol'n

Answer 30

good

Answer 31

hm not quite

adjacent angles in a parallelogram are supplementary so

4x + 84 = 180 solve for x

Answer 32

24

Answer 33

good so 24 = your sol'n

Answer 34

good

Answer 35

hm

the diagram isn't 100% clear but I belive they're trying to say

CG = 2x
CE = 3x + 8

which means 2x = (1/2)(3x+8) by virtue of CE being half the full diagonal

solve for x, then figure out CE 3x + 8

Answer 36

8

Answer 37

which in turn is 32

Answer 38

good so 32 = your sol'n

Answer 39

good

Answer 40

good

Answer 41

good

Answer 42

@Mercury

Answer 43

good

Answer 44

good