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Angle-Side Relationships in Triangles

Explore the relationships between angles and side lengths in triangles with this Grade 6 worksheet.

Grade 6 Math GeometryAngle Side Relationships in Triangles
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Multiple ChoiceFill in the BlanksShort AnswerCustomTrue / False

Standards

CCSS.MATH.CONTENT.6.G.A.1

Topics

mathgeometrytrianglesanglessidesgrade 6
7 sections · Free to use · Printable
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Angle-Side Relationships in Triangles

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Date:

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Read each question carefully and answer to the best of your ability. Remember the relationship between angles and the sides opposite them in a triangle.

1. In a triangle, the longest side is always opposite the:

a

Smallest angle

b

Largest angle

c

Right angle

d

Acute angle

2. If two angles in a triangle are equal, then the sides opposite those angles are:

a

Unequal

b

Perpendicular

c

Equal

d

Parallel

3. In a triangle, the shortest side is opposite the   angle.

4. If all three angles of a triangle are equal, then all three sides are  .

5. A triangle has angles measuring 40°, 60°, and 80°. Which side is the longest?

6. Look at the triangle below. Identify the longest and shortest sides based on the given angle measures.

ABC70°60°50°

Longest Side:  

Shortest Side:  

7. In any triangle, the sum of the lengths of any two sides must be greater than the length of the third side.

T

True

F

False