Classify Angels and Triangles

Use the angles to classify the triangles

Tags

CCSS.4.G.A.2

Use the angles to classify the triangles

Tags

CCSS.4.G.A.2

Use the angles to classify the triangles

all angles less than 90° - acute triangle

1 angle is equal to 90° - right triangle

1 angle is greater than 90° - obtuse triangle

Tags

CCSS.4.G.A.2

Use the angles to classify the triangles

Tags

CCSS.4.G.A.2

• acute

• obtuse

• right

Tags

CCSS.4.G.A.2

What kind of triangle is this?

• Right

• Obtuse

• Acute

Tags

CCSS.4.G.A.2

A triangle has no pairs of perpendicular sides, 2 acute angles and one obtuse angle.

Is the triangle an acute, obtuse, or right triangle?

The triangle is​ ​ ​ (a)  

• right because it has 1 right angle

• right because it has 2 acute angles

• obtuse because it has 2 acute and 1 obtuse angle

• acute because it has 3 acute angles

Tags

CCSS.4.G.A.2

• acute

• obtuse

• right

Tags

CCSS.4.G.A.2

• acute

• obtuse

• right

Tags

CCSS.4.G.A.2

• acute

• obtuse

• right

Tags

CCSS.4.G.A.2