Triangle Inequality and Isosceles Triangles

If two angles in a triangle are  $45\degree$  and  $\ 75\degree$ , what is the measure of the third angle?

•  $75\degree$  

•  $90\degree$  

•  $60\degree$  

•  $70\degree$  

Tags

CCSS.8.G.A.5

Isosceles triangles ...

• have three different side lengths

• have two side lengths that are congruent

• have two angles that are congruent

• always have a 90 degree angle

Tags

CCSS.2.G.A.1

Which angle is the vertex angle?

• <C
• <A
• <B

Tags

CCSS.7.G.B.5

Which segment is the base?

• Segment AB
• Segment BC
• Segment AC

Tags

CCSS.7.G.A.2

What is the value of x?

• 51
• 49
• 78

Tags

CCSS.8.G.A.5

What is the measure of angle 2?

• 50
• 65
• 115

Tags

CCSS.8.G.A.5

• 72
• 67
• 65
• 54

Tags

CCSS.8.G.A.5

• 12
• 11
• 8
• 6

Tags

CCSS.8.G.B.7

What is the value of x?

• 51
• 49
• 78

In triangle ABC, the length of side AB is 10 inches and the length of side BC is 17 inches.  Which of the following could be the length of side AC?

• 16 inches
• 5 inches
• 32 inches
• 29 inches

Tags

CCSS.7.G.A.2