Triangles Review

How many angles are in a triangle?

Tags

CCSS.2.G.A.1

How many degrees are in a triangle?

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CCSS.8.G.A.5

Which of the following expresses the Triangle Sum Theorem? (the rule that tells us if 3 angles will form a triangle)

• a+b=c

• A+B+C=180

• A+B+C=90

• a+b>c

Tags

CCSS.8.G.A.5

Which of the following expresses the Triangle Inequality Theorem? (the rule that tells us if 3 side lengths will form a triangle)

• a+b=c

• A+B+C=180

• a+b<c

• a+b>c

How many triangles could be made using the following measurements:

12 m, 18 m, 6 m

• No Triangle

• One Unique Triangle

• Infinite/More than One Triangle

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CCSS.7.G.A.2

How many triangles could be made using the following measurements:

85°, 75°, 20°

• No Triangle

• One Unique Triangle

• Infinite/More than One Triangle

Tags

CCSS.7.G.A.2

How many triangles could be made using the following measurements:

48 in, 92 in, 50 in

• No Triangle

• One Unique Triangle

• Infinite/More than One Triangle

Tags

CCSS.7.G.A.2

How many triangles could be made using the following measurements:

43°, 77°, 60°

• No Triangle

• One Unique Triangle

• Infinite/More than One Triangle

Tags

CCSS.7.G.A.2

Which range could be the measurement of the third side of a triangle if the other two sides were 21cm and 15 cm?

• 6 - 36

• 17-22

• 1-5

• 6-14

If a triangle has side lengths of 12 cm and 14 cm, which of the following could be the 3rd side length?

• 27 cm

• 3 cm

• 2 cm

• 30 cm