Question

i need help with some questions

Answer 1

@Vocaloid

Answer 2

line KI bisects angle I

so if <GIK is 28 then what is angle I?

Answer 3

i got it, thanks

Answer 4

actually, i got it wrong..

Answer 5

hm?

so since GIK is one half the entire angle I, then angle I = 28*2 = 56

so GEI = 180 - 56 - 98 = 26 if I"m not mistaken

Answer 6

good

Answer 7

good attempt but not quite

since this is a circumcenter all the dotted lines are equal

Answer 8

so D?

Answer 9

3.6 is not the length of the dotted lines

Answer 10

i meant to say C

Answer 11

good, C

Answer 12

be careful, angle bisectors would be incenter not circumcenter

Answer 13

perfect

Answer 14

hm, not quite, make sure you are picking two angles that are adjacent to each other, and split in the middle with a bisector

Answer 15

ah, so D?

Answer 16

good

Answer 17

good

Answer 18

good

Answer 19

keep in mind the circumcenter can be outside if the triangle is obtuse (see the upper right corner)

Answer 20

so false

Answer 21

yup that's correct

Answer 22

LN

Answer 23

good

Answer 24

huh

i'm not 100% sure how to prove it but I have a suspicion that <1 is one half of <MNO

so 2(3x+5) = 7x - 7 solve for x

Answer 25

17

Answer 26

good

i'm just going to see if I can get someone to verify that for me

Answer 27

ok

Answer 28

...

Answer 29

yeah the left side and right side are congruent because of the HL theorem so yes, x = 17