Triangles

What is the perimeter of this triangle?

• 18 cm

• 12 cm

• 18 mm

• 12 mm

Tags

CCSS.3.MD.D.8

What type of triangle is this?

• Obtuse triangle

• Acute triangle

• Right triangle

• Straight triangle

Answer explanation

Right triangles have a right angle, Obtuse triangles have an angle that is more than 90 degrees, and acute triangles have angles that are less than 90 degrees.

Tags

CCSS.4.G.A.2

what is the perimeter of a triangle with measurements of 5 mm, 8 mm, and 3 mm?

Tags

CCSS.3.MD.D.8

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What is the name of this kind of triangle?

• Right
• Isosceles
• Scalene
• Equilateral

Tags

CCSS.4.G.A.2

If all three angles are exactly the same measure, how big is each angle?
Hint:    x + x + x  = 180

• 180 degrees
• 90 degrees
• 50 degrees
• 60 degrees

Tags

CCSS.8.G.A.5

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What is the name of this kind of triangle?

• Right
• Scalene
• Isosceles
• Equilateral

Tags

CCSS.4.G.A.2

Identify the statements that are true.

• A scalene triangle has exactly two congruent sides.

• An obtuse triangle has exactly one obtuse angle.

• An acute triangle has three acute angles.

• A right triangle has one right angle and at least one obtuse angle.

• An equilateral triangle has three acute angles.

Tags

CCSS.4.G.A.2

Choose the triangle that has the correct interior angle measurements.

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Tags

CCSS.8.G.A.5

Which triangle can best be described as an equilateral triangle?

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Tags

CCSS.2.G.A.1

The measure of each angle of an acute triangle must be —

• equal 90°

• less than 90°

• total 360°

• more than 90°

Tags

CCSS.8.G.A.5