Question

Find x and classify each triangle by its angles. Provide the theorem (sum of interior angles or exterior angle theorem) you used to solve the problem.

Answer 1

diiiiiiiid i was working on it

Answer 2

GAWD broo

Answer 3

^~^

Answer 4

x is outside the triangle , right ?

Answer 5

yees

Answer 6

so, x is called exterior angle

Answer 7

ook

Answer 8

60, and 40 are inside the triangle, and they are far away from x, so they are called 'remote interior angles'

Answer 9

ok

Answer 10

exterior angle theorem :-

exterior angle = sum of two remote interior angles

Answer 11

x = 60+40

Answer 12

oooooooh so i just do the same thing as the other triangle add the other two angles to find x? just using a different theorem

Answer 13

in the other problem, u have added the two angles, and subtracted from 180. thats called 'sum of interior angles theorem'

Answer 14

yes

Answer 15

in this problem, we simply added the two interior angles. this is called 'exterior angle theorem'

Answer 16

ok

Answer 17

here, x = 100
the triangle is acute, and uve used 'exterior angle theorem'

Answer 18

ok

Answer 19

thanks

Answer 20

np