Angles in Triangles Vocab

What is a right angle?

• An angle that is exactly 90 degrees and makes a square in the corner.

• An angle that is less than 90 degrees so it is smaller than a right angle.

• An angle that is more than 90 degrees so it is bigger than a right angle.

Tags

CCSS.4.G.A.1

What is an acute angle?

• An angle that is exactly 90 degrees and makes a square in the corner.

• An angle that is less than 90 degrees so it is smaller than a right angle.

• An angle that is more than 90 degrees so it is bigger than a right angle.

Tags

CCSS.4.G.A.1

What is an obtuse angle?

• An angle that is exactly 90 degrees and makes a square in the corner.

• An angle that is less than 90 degrees so it is smaller than a right angle.

• An angle that is more than 90 degrees so it is bigger than a right angle.

Tags

CCSS.4.G.A.1

What does congruent mean?

• Same size, same shape.

• Same size, same color.

• Same color, same shape.

• Same size, same radius.

Tags

CCSS.8.G.A.2

What is an equilateral triangle?

• A triangle with three congruent sides.

• A triangle with at least two congruent sides.

• A triangle with no congruent sides.

Tags

CCSS.4.G.A.2

What is an isosceles triangle?

• A triangle with three congruent sides.

• A triangle with at least two congruent sides.

• A triangle with no congruent sides.

Tags

CCSS.4.G.A.2

What is a scalene triangle?

• A triangle with three congruent sides.

• A triangle with at least two congruent sides.

• A triangle with no congruent sides.

Tags

CCSS.4.G.A.2

What angle is this?

• Right Angle

• Acute Angle

• Obtuse Angle

Tags

CCSS.4.G.A.1

Which picture represents the shapes being congruent?

• 
• 
• 
• 

Tags

CCSS.8.G.A.2

What triangle is this?

• Equilateral Triangle

• Isosceles Triangle

• Scalene Triangle

Tags

CCSS.4.G.A.2