# Drawing Triangles

Skill:

Recognize conditions of side lengths that determine a unique triangle, more than one triangle, or no triangle.

# Drawing Triangles

Discover whether or not a triangle can be formed from three different side lengths. Explore animated answers in this activity.

### Putting It All Together

*Answer these open ended questions on your own or with others to form deeper math connections. *

### Open-ended question 1

Triangle has two sides, length 5 cm and 8 cm. Give three possible lengths for the third side.

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### Open-ended question 2

Triangle has two sides, length 5 cm and 8 cm. Give three lengths for the third side that are not possible.

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### Open-ended question 3

Triangle has two sides, length 12 cm and 30 cm. What is the longest possible length of the third side? What is the shortest possible length of the third side?

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### Open-ended question 4

How can you tell if three different lengths will form a triangle?

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## Explore more

Prerequisite Resources