Quadrilaterals and Triangles

What are ALL the names for this triangle?

• isosceles and acute only

• equilateral and acute only

• equilateral, isosceles, acute

• acute only

Tags

CCSS.4.G.A.2

What are ALL the names for this triangle?

• acute and scalene

• obtuse and scalene

• right and scalene

• right and isosceles

Tags

CCSS.4.G.A.2

Name this triangle by its angles and sides.

• obtuse, isosceles

• acute isosceles

• right, scalene

• acute, equilateral

Tags

CCSS.4.G.A.2

A triangle has angle measurements of 26°, 59°, and 95°. What kind of triangle is it?

• acute triangle
• right triangle
• obtuse triangle
• none of the above

Tags

CCSS.4.G.A.2

A triangle has two sides measuring 8 millimeters each and one side measuring 7 millimeters. What type of triangle is this?

• isosceles

• obtuse

• scalene

• equilateral and isosceles

Tags

CCSS.4.G.A.2

Marissa had a scarf that was in the shape of a right triangle. Which triangle could be Marissa's scarf?

• 
• 
• 
• 

Tags

CCSS.2.G.A.1

If a triangle has all angles less than 90° and two equal sides, what type of triangle is it?

• Acute Isosceles
• Acute Scalene
• Obtuse Scalene
• Obtuse Isosceles

Tags

CCSS.4.G.A.2

Samantha states that an equilateral triangle is also an isosceles triangle. Is she correct?

• No, because an isosceles triangle has no equal sides.

• Yes, because an equilateral triangle has 3 acute angles.

• No, because an isosceles triangle must have exactly 2 equal sides.

• Yes, because an isosceles triangle has at least 2 equal sides.

Tags

CCSS.4.G.A.2

According to the diagram, which of these statements is NOT true?

• Every acute triangle has 3 congruent sides.

• An obtuse triangle can have 2 congruent sides.

• A right triangle CANNOT have 3 congruent sides.

• An obtuse triangle can also be scalene.

Tags

CCSS.4.G.A.2

An equilateral triangle can _____________ be an obtuse triangle.

(Hint: Not sure? Try to draw it!)

• Always

• Sometimes

• Never

Tags

CCSS.4.G.A.2