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Triangles

Last updated almost 6 years ago
22 questions

Learning Targets

  • How do you use the Triangle Sum and Isosceles Triangle Theorems?
  • What information can you gather from congruence statements?
  • How can I write a congruence statement?

Standards

MGSE9-12.G.CO.7 Use the definition of congruence in terms of rigid motions to show that two triangles are congruent if and only if corresponding pairs of sides and corresponding pairs of angles are congruent.
MGSE9-12.G.CO.10 Prove theorems about triangles.

Triangle Sum Theorem


1

Find the missing measure.

1

Find the missing measure.

1

Find the missing measure.

1

Find the missing measure.

1

Which equation could be used to solve for x?

1

Solve for x.
x =

1

Which equation could be used to solve for x?

1

Solve for x.
x =

Isosceles Triangles

1

Solve for x.
x =

1

Solve for x.
x =

1

Solve for x.

1

Solve for x.

Congruence Statements

Complete the congruence statement by naming the corresponding angle or side.
1

1

1

1

1

1

1

Mark the angles and sides of each pair of triangles to indicate that they are congruent.

1

Mark the angles and sides of each pair of triangles to indicate that they are congruent.

1

Complete the triangle congruence statement:
△GFE ≅ △ _______

1

Complete the triangle congruence statement:
△PQR ≅ △ _______