Question

1. an angle that measures exactly 180 degrees is known as?

a. obtuse
b. right
c. acute
d. straight

Explanation:

• An obtuse angle measures between \(90^{\circ}\) and \(180^{\circ}\).
• A right angle measures exactly \(90^{\circ}\).
• An acute angle measures between \(0^{\circ}\) and \(90^{\circ}\).
• A straight angle measures exactly \(180^{\circ}\).

Answer:

d. Straight