Mathematics 7 Unit Test

It is a closed-plane figure bounded by line segments that meet only at their endpoints.

• Sides

• Segments

• Polygons

• Lines

What do you call a polygon with 11 sides?

• decagon

• dodecagon

• octagon

• undecagon

Which of the following figures is NOT belong to the group?

• 
• 
• 
• 

It is a polygon whose sides are all congruent.

• Equilateral Polygon

• Equiangular Polygon

• Irregular Polygon

• Regular Polygon

It is a polygon whose sides and angles are not equal.

• Equilateral Polygon

• Equiangular Polygon

• Irregular Polygon

• Regular Polygon

Which of the following pairs of angles add up to 90°?

• Supplementary angles

• Complementary angles

• Adjacent angles

• Vertical angles

What do you call a polygon with 8 sides?

• decagon

• dodecagon

• octagon

• undecagon

In a regular pentagon ABCDE, if side BC = 15 cm, how long is side DE?

• 5 cm

• 10 cm

• 15 cm

• 100 cm

What types of angles are formed when the pairs of opposite angles are made by two intersecting lines and always equal.

• Supplementary angles

• Complementary angles

• Adjacent angles

• Vertical angles

Given ∠M and ∠N are supplementary, what is the m∠N if the measure of m∠M=110°?

• 20°

• 30°

• 60°

• 70°