Classifying Triangles

An isosceles triangle has _________ ≌ sides.

• one

• two

• three

• four

A right triangle has one angle that measures _______ and two acute angles.

• 90°

• less than 90°

• more than 90°

• 180°

Tags

CCSS.7.G.B.5

An ____________ triangle has three ≌ sides.

• isosceles

• equilateral

• scalene

A _________ triangle has no ≌ sides.

• scalene

• isosceles

• equilateral

In a triangle, what is the sum of the interior angles?

(what to the 3 angles add up to?)

• 100%

• 180 degrees

• it varies

• 360 degrees

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.

.

.

What is the classification of this kind of triangle?

• Right

• Isosceles

• Scalene

• Equilateral

.

.

.

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What is the classification of this kind of triangle?

• Right

• Scalene

• Isosceles

• Equilateral

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 angle measurements of 54°, 52°, and 74°. 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 angle measurements of 74°, 90°, and 16°. What kind of triangle is it?

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

Tags

CCSS.4.G.A.2