Introduction to Congruent Figures

Q2 C.A. REVIEW:
Congruence and Triangle Side/Angle Relationships

Drag and Drop

Congruent figures have the same size and ​

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. This means ​

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lengths and ​

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measures are preserved. We can prove two figures are congruent if the shapes map onto one another through ​

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.

Drag these tiles and drop them in the correct blank above

shape

side

angle

rigid transformations

triangles

congruent

Multiple Choice

Which triangle is congruent to ΔMNO?

• ΔJKL

• ΔSTU

• ΔQRS

Multiple Select

Which triangle pairs are congruent? (click on two answers)

• ΔABC ≅ ΔGHJ

• ΔABC ≅ ΔDEF

• ΔKLM ≅ ΔGHJ

• ΔDEF ≅ ΔGHJ

Multiple Select

Click on the two triangles that are congruent.

• ΔJKL

• ΔMNO

• ΔQRP

The smallest angle is ACROSS/OPPOSITE the smallest side.

The largest angle is ACROSS/OPPOSITE the largest side.

​

​Ordering Triangle Angles

Multiple Choice

Which angle is ACROSS from the smallest side?

• ∠R

• ∠S

• ∠T

Multiple Choice

Which angle is ACROSS from the largest side?

• ∠R

• ∠S

• ∠T

Drag and Drop

Order the angles from smallest to largest: ​ ​

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, ​

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, ​

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.

Drag these tiles and drop them in the correct blank above

The smallest side is ACROSS/OPPOSITE the smallest angle.

Sides are named with TWO letters.

​

​Ordering Triangle Sides

Multiple Choice

What is the missing angle measure?

• 44

• 56

• 74

• 82

Multiple Choice

What is the side opposite the largest angle?

• XY

• YZ

• XZ

Drag and Drop

Order the sides from largest to smallest: ​

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, ​

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, ​

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.

Drag these tiles and drop them in the correct blank above

JL

JK

KL