Trigonometry

Is an angle of 25° acute or obtuse?

• zero
• straight
• right
• acute

Is an angle of 75° acute or obtuse?

• straight
• right
• zero
• acute

Is an angle of 105° acute or obtuse?

• straight
• right
• obtuse
• zero

Is an angle of 30° acute or obtuse?

• straight
• zero
• acute
• right

Is an angle of 55° acute or obtuse?

• zero
• straight
• acute
• right

Is an angle of 70° acute or obtuse?

• right
• straight
• zero
• acute

Is an angle of 65° acute or obtuse?

• acute
• right
• zero
• straight

Is an angle of 100° acute or obtuse?

• straight
• zero
• right
• obtuse

Is an angle of 85° acute or obtuse?

• straight
• acute
• right
• zero

Is an angle of 125° acute or obtuse?

• obtuse
• straight
• right
• zero

Is an angle of 50° acute or obtuse?

• zero
• acute
• right
• straight

Is an angle of 115° acute or obtuse?

• zero
• straight
• obtuse
• right

Is an angle of 40° acute or obtuse?

• right
• straight
• acute
• zero

Is an angle of 145° acute or obtuse?

• zero
• obtuse
• right
• straight

Is an angle of 95° acute or obtuse?

• zero
• straight
• right
• obtuse

Is an angle of 135° acute or obtuse?

• right
• straight
• zero
• obtuse

Is an angle of 15° acute or obtuse?

• right
• acute
• zero
• straight

Is an angle of 165° acute or obtuse?

• zero
• obtuse
• straight
• right

Is an angle of 80° acute or obtuse?

• zero
• right
• straight
• acute

Is an angle of 175° acute or obtuse?

• obtuse
• zero
• straight
• right