Types of Triangles and Angles

The video tutorial by Mighty Owl covers the classification of triangles and quadrilaterals. It begins with an introduction to triangles, explaining how they can be classified by their sides as scalene, isosceles, or equilateral, and by their angles as acute, obtuse, or right. The tutorial includes practice exercises for classifying triangles. It then transitions to quadrilaterals, discussing how they can be classified by their sides and angles, with examples like parallelograms, rectangles, and trapezoids. The video concludes with riddles to reinforce the concepts learned.

Which type of triangle has all sides of different lengths?

• Isosceles

• Right

• Scalene

• Equilateral

Tags

CCSS.4.G.A.2

What is the name of a triangle with two sides of equal length?

• Equilateral

• Scalene

• Isosceles

• Obtuse

Tags

CCSS.4.G.A.2

Which type of triangle has all angles less than 90 degrees?

• Right

• Scalene

• Obtuse

• Acute

Tags

CCSS.4.G.A.2

What is the defining feature of a right triangle?

• All angles are less than 90 degrees

• All sides are equal

• One angle is greater than 90 degrees

• One angle is 90 degrees

Tags

CCSS.4.G.A.2

In the practice example, what type of triangle did Eric draw based on its sides?

• Equilateral

• Scalene

• Isosceles

• Right

Tags

CCSS.7.G.B.5

What type of angle is indicated by a small box in a triangle?

• Acute

• Obtuse

• Right

• Scalene

Tags

CCSS.4.G.A.2

What is a quadrilateral with two pairs of parallel sides called?

• Trapezoid

• Rectangle

• Parallelogram

• Square

Tags

CCSS.4.G.A.2

Which shape has only one set of parallel sides?

• Rectangle

• Square

• Trapezoid

• Parallelogram

Tags

CCSS.4.G.A.2

In the riddles, what type of triangle has an angle measuring 95 degrees?

• Right

• Acute

• Obtuse

• Equilateral

Tags

CCSS.4.G.A.2

What is the shape called when a rectangle and a triangle are combined with one set of parallel sides?

• Rhombus

• Square

• Parallelogram

• Trapezoid

Tags

CCSS.4.G.A.2