Math Club Triangles

Choose the image that best describes the word TRUSS

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Which shape can bear the most weight?

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There are six triangles inside the truss shown in the image. What type of triangle is labeled with the letter A?

• An acute triangle

• An obtuse triangle

• A right triangle

The triangle in this truss has angles that measure 128°, 26°, and 26°.

What kind of triangle is it?

• Acute

• Obtuse

• Right

The triangle shown in the image is...

• Isosceles

• Equilateral

• Escalene

The triangle in the image has side lengths that measure 38 inches, 9 inches, and 41 inches.

The triangle is...

• Equilateral

• Escalene

• Isosceles

The triangle labeled B in the picture has angles that measure 41°, 85°, and 54°. The triangle is...

• Acute

• Obtuse

• Right

The triangle shown in the image is equilateral. Explain what you know about its side lengths and angle measures.

Answer explanation

An equilateral triangle has three sides that are all the same length and three angles that all have the same measure. The measure of the angles is 60 degrees.