Angles and Triangles

An angle that measures less than 90°

• Acute
• Obtuse
• Right
• Straight

What type of angle is this?

• acute

• obtuse

• right

• straight

Which type of angle is pictured?

• Acute
• Right
• Obtuse
• Straight

Vertical angles are

• 90 degrees always

• across from each other and congruent

• make a straight line

• next to each other and supplementary

∠1 and ∠3 can best be described as -

• complementary angles
• supplementary angles
• vertical angles
• adjacent angles

   What is the measure of angle A?

• 100°
• 80°
• 90°
• 180°

In a triangle, how many total degrees are there?

• 100%
• 180 degrees
• it varies
• 360 degrees

What are supplementary angles?

• Angles that add up to 180°

• Angles that add up to 90°

• Angles that are equal to each other

• Angles that are opposite of each other when lines intersect

Complementary angles added together equal what degree?

• 180 
• 90 
• 60
• 45

What equation would you use to find the value of x?

• 2x-6=7x+4
• 2x-6+7x+4=90
• 2x-6+7x+4=180
• 2x-6+7x+4=360