Classifying Triangles with Pythagorean Theorem

Classify each triangle by its angles and sides.

• Acute, Isosceles

• Obtuse, Isosceles

• Right, Scalene

• Equiangular, Equilateral,

• Acute, Scalene

Identify the triangle by its sides and angles

• Right Isosceles

• Right Scalene

• Right Equilateral

Classify this triangle.

• Acute

• Obtuse

• Right

What kind of triangle is this?

• acute

• right

• obtuse

• 360 degrees

Use Pythagorean Theorem to determine if the triangle is acute, right, or obtuse.

• acute

• right

• obtuse

If a² + b² = c², what type of triangle is the triangle?

• Right

• Obtuse

• Acute

• Irregular

State if the triangle is acute, obtuse or right. Why?

• Obtuse because 6²+7²<10²

• Obtuse because 6²+7²>10²

• Acute because 6²+7²>10²

• Acute because 6²+7²<10²

• Right because 6²+7²=10²

Find the missing length indicated. Leave your answer in simplest radical form.

• 64

• 12

• 9

• 100

The Pythagorean Theorem, a² + b² = c², only works for what type of triangles?

• acute

• right

• obtuse

• equilateral

Look at the sides and angles of this triangle. Which type of triangle is pictured?

• Equilateral Triangle

• Right Isosceles Triangle

• Obtuse Scalene Triangle

• Obtuse Equilateral Triangle