Classifying Triangle

A triangle with 2 congruent sides.

(Un triángulo con 2 lados congruentes.)

• Equilateral Triangle

  (Triángulo equilátero)

• Isosceles Triangle

  (Triángulo isósceles)

• Scalene Triangle

  (Triángulo escaleno)

Tags

CCSS.4.G.A.2

A triangle with one angle measuring more than 90 degrees is known as?

(Un triángulo con un ángulo que mide más de 90 grados se conoce como?)

• Obtuse triangle.

  (Triángulo obtuso.)

• Acute triangle.

  (Triángulo agudo.)

• Right triangle.

  (Triángulo rectángulo.)

Tags

CCSS.4.G.A.2

LOOKING AT ANGLES: WHAT TYPE OF TRIANGLE IS THIS? HINT: ONE ANGLE = 90 DEGREES

• ACUTE

• OBTUSE

• RIGHT

Tags

CCSS.4.G.A.2

Label the three triangles

a

b

c

Equilateral Triangle

Scalene Triangle

Isosceles Triangle

Tags

CCSS.4.G.A.2

Side Classification: ​ (a)  

Angle Classification: ​ (b)  

• Isosceles

• Acute

• Right

• Obtuse

• Equilateral

• Scalene

Tags

CCSS.4.G.A.2

Classify the following triangle​ .​ ​ ​ ​ ​ ​ ​ ​ ​ ​​ ​ (a)   ​ (b)   ​ (c)   ​

• right triangle

• acute triangle

• obtuse triangle

Tags

CCSS.4.G.A.2

Classify this triangle.

b

right scalene

obtuse scalene

acute equilateral

right isosceles

acute isosceles

Tags

CCSS.4.G.A.2

Which triangle is classified as scalene and obtuse?

Tags

CCSS.4.G.A.2

Side Classification: ​ (a)  

Angle Classification: ​ (b)  

• isosceles

• right

• scalene

• obtuse

• equilateral

• acute

Tags

CCSS.4.G.A.2

This is a right triangle because —

• it is facing the right way

• it has 3 acute angles

• it has one 90 degree angle

• it does not have one obtuse angle

Tags

CCSS.4.G.A.2