Page 24 - TB_5B

1 . Find the measure of the unknown angle. 38Ø
Ø
a. b.

Ø

45Ø 38Ø

c. d. Ø

70Ø Ø
60Ø
60Ø

e. f. Ø
117Ø
Ø

57Ø
42Ø

34Ø

2 . Find the sum of the marked angles.

a. b.

ØØ

18. The Sum of the Angles in a Polygon 13