What is a triangle?

• A shape with no sides

• A shape with four equal sides

• A two-dimensional shape with three sides, three angles, and three vertices

• A three-dimensional shape with four sides

Tags

CCSS.2.G.A.1

Which of the following is NOT a type of triangle based on angles?

• Obtuse triangle

• Equilateral triangle

• Acute triangle

• Right triangle

Tags

CCSS.4.G.A.2

What is the sum of all interior angles in a triangle?

• 360°

• 270°

• 180°

• 90°

Tags

CCSS.8.G.A.5

Which type of triangle has one angle that measures exactly 90°?

• Right triangle

• Scalene triangle

• Obtuse triangle

• Acute triangle

Tags

CCSS.4.G.A.2

What is the longest side of a right triangle called?

• Base

• Height

• Hypotenuse

• Vertex

Which type of triangle has all sides of different lengths?

• Equilateral triangle

• Right triangle

• Scalene triangle

• Isosceles triangle

Tags

CCSS.4.G.A.2

How do you calculate the area of a triangle?

• Base + Height

• Base + Height ÷ 2

• Base × Height ÷ 2

• Base × Height

Tags

CCSS.6.G.A.1

Which of the following is a property of a triangle?

• The sum of the length of two sides is always greater than the length of the third side

• It has no vertices

• The sum of its interior angles is 360°

• It has four sides

What is the perimeter of a triangle with sides measuring 3 cm, 4 cm, and 5 cm?

• 9 cm

• 12 cm

• 7 cm

• 15 cm

Tags

CCSS.3.MD.D.8

Which type of triangle has all three sides equal?

• Scalene triangle

• Isosceles triangle

• Equilateral triangle

• Right triangle

Tags

CCSS.4.G.A.2