Triangles

Which of the following is an Equilateral Triangle?

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What are the attributes required of a polygon to call that polygon a triangle?

• Three sides and three right angles.

• Three parallel sides.

• Three sides and three angles.

• Three sides with one opening.

Tags

CCSS.2.G.A.1

An isosceles triangle ..

• consists of a pair of congruent sides and base angles

• consists of a pair of similar sides and base angles

• consists of a congruent pair of sides and vertices

Tags

CCSS.2.G.A.1

Which picture shows a right triangle?

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Which of these is a right triangle?

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What attribute does A, B, D, and F have in common?

• They each have 3 sides

• They each have at least 1 right angle

• They each have 3 sides and at least 1 right angle

• They do not share a common attribute

Tags

CCSS.2.G.A.1

Select all the shapes that represent triangles.

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Question 1

• C

• D

• B

• A

Is this shape a triangle?

• Yes!

• No

Tags

CCSS.2.G.A.1

Which triangle is a Right Triangle?

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