9.1 Classifying Triangles (Due 4/30/2025)

Last updated 3 days ago

29 questions

Note from the author:

Instructions

Required

9.1 Classifying Triangles (Due 4/30/2025)

Last updated 3 days ago

29 questions

Note from the author:

Essential Question: What are the basic characteristics of special triangles?

Learning Target: Students will be able to classify triangles by their angles and measures and use that information to solve real-world problems.

Complete the entire document for credit.

Instructions

Essential Question: What are the basic characteristics of special triangles?

Learning Target: Students will be able to classify triangles by their angles and measures and use that information to solve real-world problems.

Complete the entire document for credit.

Essential Question: What relationships exist between the side lengths and angle measures of a triangle, and how do these relationships help us categorize them?

Learning Target: Students will be able to identify equilateral, isosceles, and scalene triangles and use their properties to find missing side lengths and angle values.

Complete the entire document and use full sentences when prompted for full credit.

Responses without work will receive no points.

Remember to upload work from paper when prompted to receive credit.

Required

Can a triangle have two obtuse angles? Why or why not?

Required

Classify this triangle by its angles and sides.

Angles:
This is a _______ triangle

Sides:
This is a _______  triangle

Required

Classify this triangle by its angles and sides.

Angles: 
This is a  _______ triangle
Sides:
This is a  _______ triangle

Required

Classify this triangle by its angles and sides.

By its angles:
 _______ 

By its sides:
_______ 

Required

Classify this triangle by its angles and sides.

By its angles:
_______ 

By its sides:
_______ 

Required

Classify this triangle by its angles and sides.
By its angles:
_______ 
By its sides:
_______ 

Required

Classify this triangle by its angles and sides.
By its angles:
_______ 

By its sides:
_______ 

Required

Classify this triangle by its angles and sides.
By its angles:
 _______ 

By its sides:
_______ 

Concept Review

Required

Day 2 4/29/25

Using angles of a Triangle

Required

Digging Deeper

Required

9.1 Classifying Triangles (Due 4/30/2025)

9.1 Classifying Triangles (Due 4/30/2025)

Can a triangle have two obtuse angles? Why or why not?

Concept Review

Day 2 4/29/25

Using angles of a Triangle

Digging Deeper

Can a triangle have two obtuse angles? Why or why not?

Concept Review

Draw an example of vertical right angles.

Select all the adjacent angles to ∠5

Day 2 4/29/25

Using angles of a Triangle

Using sides of a Triangle

If △ABC is an equilateral triangle, solve for y.

If △ABC is an equilateral triangle, solve for x.

Digging Deeper

Draw an example of vertical right angles.

Select all the adjacent angles to ∠5

Using sides of a Triangle

If △ABC is an equilateral triangle, solve for y.

If △ABC is an equilateral triangle, solve for x.

Triangle B: A right, scalene triangle. Is this possible? Why or Why not?

Triangle C: An acute, isosceles triangle. Is this possible? Why or Why not?

Triangle D: A triangle with side lengths of 4cm, 5cm, and 10cm.
Is this possible? Why or Why not?

Triangle B: A right, scalene triangle. Is this possible? Why or Why not?

Triangle C: An acute, isosceles triangle. Is this possible? Why or Why not?

Triangle D: A triangle with side lengths of 4cm, 5cm, and 10cm.
Is this possible? Why or Why not?

9.1 Classifying Triangles (Due 4/30/2025)

9.1 Classifying Triangles (Due 4/30/2025)

Can a triangle have two obtuse angles? Why or why not?

Concept Review

Day 2 4/29/25

Using angles of a Triangle

Digging Deeper

Can a triangle have two obtuse angles? Why or why not?

Concept Review

Draw an example of vertical right angles.

Select all the adjacent angles to ∠5

Day 2 4/29/25

Using angles of a Triangle

Using sides of a Triangle

If △ABC is an equilateral triangle, solve for y.

If △ABC is an equilateral triangle, solve for x.

Digging Deeper

Draw an example of vertical right angles.

Select all the adjacent angles to ∠5

Using sides of a Triangle

If △ABC is an equilateral triangle, solve for y.

If △ABC is an equilateral triangle, solve for x.

Triangle B: A right, scalene triangle. Is this possible? Why or Why not?

Triangle C: An acute, isosceles triangle. Is this possible? Why or Why not?

Triangle D: A triangle with side lengths of 4cm, 5cm, and 10cm. Is this possible? Why or Why not?

Triangle B: A right, scalene triangle. Is this possible? Why or Why not?

Triangle C: An acute, isosceles triangle. Is this possible? Why or Why not?

Triangle D: A triangle with side lengths of 4cm, 5cm, and 10cm. Is this possible? Why or Why not?

Triangle D: A triangle with side lengths of 4cm, 5cm, and 10cm.
Is this possible? Why or Why not?

Triangle D: A triangle with side lengths of 4cm, 5cm, and 10cm.
Is this possible? Why or Why not?