Introduction to Triangles

What features do all triangles have in common?

• (a) 4 sides

• (b) 3 sides

• (c) 3 angles

• (b) and (c)

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What is the name of this kind of triangle?

• Right
• Isosceles
• Scalene
• Equilateral

Tags

CCSS.4.G.A.2

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.
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What is the name of this kind of triangle?

• Right
• Scalene
• Isosceles
• Equilateral

Tags

CCSS.4.G.A.2

.
.
.
.
What is the name of this kind of triangle?

• Right
• Scalene
• Isosceles
• Equilateral

Tags

CCSS.4.G.A.2

An ISOSCELES triangle has _____________.

• 3 equal sides

• 4 equal sides

• no equal sides

• 2 equal sides

Tags

CCSS.7.G.A.2

In a triangle, how many total degrees are there?

• 100%
• 180 degrees
• it varies
• 360 degrees

Tags

CCSS.8.G.A.5

The triangle pictured is a(n) __________ triangle.

• scalene

• isoceles

• equilateral

• equatorial

How many degrees is the angle pictured?

The triangle pictured is a ____________ triangle.

• scalene

• isoceles

• euphrates

• equilateral

What length would the side marked "?" need to be for the triangle to be classified as an isosceles triangle?

• 59 cm

• 62 cm

• 120 cm

• 240 cm