Answer
$120^{\circ}$: Obtuse
Supplement: $60^{\circ}$
Complement: $-30^{\circ}$
Work Step by Step
Angles greater than 90 are obtuse.
An angle and its supplement add up to 180. 60 + 120 = 180
An angle and its complement add up to 90. -30+120 = 90
Trigonometry 7th Edition
by McKeague, Charles P.; Turner, Mark D.
Published by
Cengage Learning
ISBN 10:
1111826854
ISBN 13:
978-1-11182-685-7
Chapter 1 - Section 1.1 - Angles, Degrees, and Special Triangles - 1.1 Problem Set - Page 11: 13
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