1. Unit 9. Day 17.

2. Example A.
Draw a triangle with side lengths 7 cm, 8 cm, 11, cm
8 𝑐𝑚
7 𝑐𝑚
11 𝑐𝑚

3. Draw a triangle with side lengths 7 cm, 8 cm, 11, cm
Example A.
Draw a triangle with side lengths 7 cm, 8 cm, 11, cm
88°
7 𝑐𝑚
8 𝑐𝑚
50°
42°
11 𝑐𝑚

4. Example B.
Draw a triangle with side lengths 3 in, 4 in, 5 in
4 𝑖𝑛
3 𝑖𝑛
5 𝑖𝑛

5. Draw a triangle with side lengths 3 in, 4 in, 5 in
Example B.
Draw a triangle with side lengths 3 in, 4 in, 5 in
90°
4 𝑖𝑛
3 𝑖𝑛
53°
37°
5 𝑖𝑛

6. Rule #1: Three side lengths of a triangle determine a unique triangle
50°
100°
30°
100°
30°
50°

7. Example C.
Draw a triangle with side lengths 10 cm, 12 cm, and included angle measuring 70°.
12 𝑐𝑚
70°
10 𝑐𝑚

8. Rule #2:
Two side lengths and the included angle of a triangle determine a unique triangle
30°
30°