86.1k views
3 votes
Help ME PLEASE FOR #8 and #9

Help ME PLEASE FOR #8 and #9-example-1
User Alex Meuer
by
8.5k points

1 Answer

3 votes

The angles of the smaller triangle are the same as the big triangle. Since you know 2 of the 3 angles, and a triangle is 180, you can do this:

8. 74 + 37 + x = 180

111 + x = 180

x = 69


9. 34 + 65 + x = 180

99 + x = 180

x = 81

User Motti Horesh
by
7.9k points