Triangles

Describe the cross section.

• triangle

• rectangle

• trapezoid

• square

Name the shape

• Triangular Pyramid

• Rectangular Pyramid

• Triangular Prism

• rectangular Prism

Find the measure of the angle indicated. 

• 139°

• 66°

• 138°

• 116°

Solve for x.

• 71

• -3

• 35

• -19

Can the following lengths be made into a triangle?
4 cm,  7 cm,  2 cm

• Yes

• No

• 180º

• Complementary

T or F: Triangles can be classified using angle measurements and/or side measurements

• True

• False

A triangle with 3 acute angles is called:

• obtuse

• acute

• scalene

• isosceles

A triangle with 1 obtuse angle is called:

• Acute

• Obtuse

• Right

• Isosceles

A triangle with 3 congruent angles is called:

• Scalene

• Equilateral

• Isosceles

• Equiangular

A triangle with 2 congruent sides is called:

• Scalene

• Equilateral

• Isosceles

• Acute