Triangle Inequalites

Find the largest side in Δ BCD

• Segment BC
• Segment DB
• Segment DC
• Segment AB

Determine whether it is possible to draw a triangle with sides of the given measures. 18cm, 20cm, 40 cm.

• yes
• no

Determine whether it is possible to draw a triangle with sides of the given measures. 9cm, 12cm, 15cm.

• yes
• no

Determine whether it is possible to draw a triangle with sides of the given measures. 20cm, 12cm, 30cm.

• yes
• no

Do the following side lengths form a triangle?
3, 10, 7

• Yes
• No

Tags

CCSS.7.G.A.2

Describe the possible lengths for the third side of the triangle given the two sides 10 and 5.

• 5 < x 10
• 0 < x < 10
• 0 < x < 15
• 5 < x < 15

The longest side of a triangle would be located where on a triangle?

• Across from the smallest angle
• Across from the largest angle
• Cannot tell.
• Adjacent to the smallest side.

Which could be the lengths of three sides of a triangle?

• A
• B
• C
• D

• 11
• 22
• 5.5
• 3.67

• PN = 7     QP = 14
• PN = 14    QP = 7
• PN = 10.5   QP = 10.5
• PN = 5.25  QP = 10.5