Triangle Practice

In a triangle, how many total degrees are there?

• 100%
• 180 degrees
• it varies
• 360 degrees

Find the measure of each angle indicated. 

• 139°
• 66°
• 138°
• 116°

Find the measure of the missing angle.

• 90^o
• 10⁰
• 130^o
• 50^o

What is the third angle of a triangle whose 1st angle is 34 and 2nd angle is 101?

• 32
• 39
• 45
• 54

Find the measure of the indicated angle.

Which of the following side lengths form a triangle?

• 1, 2, 3

• 5, 7, 8

• 6, 6, 14

• 80, 20, 50

Which of the following side measures make a triangle?

• 7, 9, 5

• 1, 3, 7

• 5, 8, 1

• 10, 10, 21

Which of the following measures form a triangle?

• 1, 1, 3

• 5, 5, 12

• 7, 9, 16

• 6, 5, 6

Measurements of 4 cm, 7 cm, and ​ (a)   form a triangle

• 6 cm
• 11 cm
• 3 cm
• 2 cm
• 12 cm

Measurements of 10 in, 18 in, and ​ (a)   form a triangle.

• 9 in
• 7 in
• 28 in
• 30 in
• 5 in