Chapter 8 Review

Match the following:

• Octagon

• 8 sides

• Heptagon

• 10 sides

• Decagon

• 6 sides

• Hexagon

• 7 sides

• Pentagon

• 5 sides

Angle that has a sum of 90

• Complementary

• Isosceles

• Supplementary

• Right

Angle that has a sum of 180

• Complementary

• Scalene

• Right

• Supplementary

If an angle measures 60, the angle is...

• N/A

• Supplementary

• Complementary

• Acute

If an angle measures 90, the angle is...

• Obtuse

• Complementary

• Right

• Supplementary

An isosceles triangle has _​ (a)  

• 2 equal sides
• 1 equal side
• 3 equal sides

A scalene triangle has ​ (a)  

• no equal sides
• 2 equal sides
• 3 equal sides

An equilateral triangle has ​ (a)  

• 3 equal sides
• 2 equal sides
• no equal sides

When given 3 angle measures, how do you know if the angle forms a triangle?

• The triangle has to equal 180 or 90

• The triangle has to equal 360

• The triangle has to equal 50

• The triangle has to equal 190

When do you use this: (n-2)180 ?

• When you have to find the value of "x" for an angle

• When you have to find the value of "x" for a triangle

• When you have to find the value of "x" for a quadrilateral

• When you have to find the value of "x" for a line