Isosceles and Equilateral Triangles

Triangles and Their Properties

Math 2

January 16, 2024

EQ: How do I classify triangles by its Sides and Angles?

Drag and Drop

Drag the correct name with its picture.​ ​ ​ ​

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Drag these tiles and drop them in the correct blank above

Right

Obtuse

Acute

Naming a Triangle by its SIDES

Scalene - a triangle with NO Sides congruent

Naming a Triangle by its SIDES

Scalene - a triangle with NO Sides congruent.

Isosceles - a triangle with 2 Sides congruent

Naming a Triangle by its SIDES

Scalene - a triangle with NO Sides congruent.

Isosceles - a triangle with 2 Sides congruent.

Equilateral - a triangle with 3 Sides congruent.

Drag and Drop

Drag the correct name with its picture.​

Placeholder

​

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​

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Drag these tiles and drop them in the correct blank above

Scalene

Equilateral

Isosceles

Naming a Triangle by its ANGLES

Acute - a triangle with 3 acute angles.

Naming a Triangle by its ANGLES

Acute - a triangle with 3 acute angles.

Obtuse - a triangle with 1 obtuse angle.

Naming a Triangle by its ANGLES

Acute - a triangle with 3 Acute angles.

Obtuse - a triangle with 1 Obtuse angle.

Right - a triangle with 1 Right angle.

Naming a Triangle by its ANGLES

Acute - a triangle with 3 Acute angles.

Obtuse - a triangle with 1 Obtuse angle.

Right - a triangle with 1 Right angle.

Equiangular - a triangle with 3 Angles Congruent.

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​Equiangular

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Open Ended

Can a triangle have more than 1 right angle or more than 1 obtuse angle?

Multiple Choice

Which term can be used to describe this triangle?

• Equiangular

• Obtuse

• Scalene

• Isosceles

Multiple Choice

Which term can be used to describe this triangle?

• Equilateral

• Obtuse

• Scalene

• Isosceles

Multiple Choice

Which term can be used to describe this triangle?

• Equilateral

• Obtuse

• Scalene

• Isosceles

Multiple Select

Choose 2 terms to describe this triangle?

• Equilateral

• Obtuse

• Right

• Isosceles

• Scalene

Multiple Select

Which term can be used to describe this triangle?

• Equilateral

• Obtuse

• Right

• Isosceles

• Scalene

Multiple Select

Which terms are used to describe a triangle by its SIDES?

• Equilateral

• Obtuse

• Right

• Isosceles

• Scalene

Multiple Select

Which terms are used to describe a triangle by its ANGLES?

• Equiangular

• Obtuse

• Right

• Isosceles

• Right

Multiple Select

Select 2 terms to describe the triangle.

• Right

• Equilateral

• Equiangular

• Isosceles

• Scalene

Multiple Select

Select 2 terms to describe the triangle.

• Right

• Equilateral

• Equiangular

• Isosceles

• Scalene

Multiple Select

Select 2 terms to describe the triangle.

• Right

• Acute

• Equiangular

• Isosceles

• Scalene

Multiple Select

Select 2 terms to describe the triangle.

• Right

• Equilateral

• Acute

• Isosceles

• Scalene

Multiple Choice

Classify the triangle by its SIDE markings.

• Right

• Equilateral

• Acute

• Isosceles

• Scalene

Multiple Choice

Classify the triangle by its SIDE markings.

• Right

• Equilateral

• Acute

• Isosceles

• Scalene

Multiple Choice

Classify the triangle by its SIDE markings.

• Right

• Equilateral

• Acute

• Isosceles

• Scalene

Multiple Choice

Classify the triangle by its ANGLE markings.

• Right

• Equiangular

• Acute

• Obtuse

• Scalene

Multiple Choice

Classify the triangle by its ANGLE markings.

• Right

• Isosceles

• Acute

• Obtuse

• Scalene

Multiple Choice

Classify the triangle by its ANGLE markings.

• Right

• Isosceles

• Acute

• Obtuse

• Scalene

Multiple Choice

Solve for x.

• 99^o

• 53^o

• 73^o

• 62^o

Multiple Choice

Solve for x.

• 54^o

• 50^o

• 41^o

• 60^o

Multiple Choice

Solve for x.

• 84^o

• 108^o

• 88^o

• 101^o

Multiple Choice

Solve for x.

• 128^o

• 100^o

• 40^o

• 90^o

Multiple Choice

Solve for x.

• -6

• -12

• 11

• 8

Multiple Choice

Solve for x.

• -6

• -9

• 7

• 11

Multiple Choice

Solve for x.

• 10

• 8

• -8

• -7

Multiple Choice

Solve for x.

• 7

• 8

• -6

• -10

Multiple Choice

Solve for x.

• 12

• -8

• 6

• -11