MATH 7 LONG QUIZ

If ∠A and ∠B are supplementary angles, then m∠A + m∠B =_____.

• 100°

•     

                                                                80°                                                                                    

• 180°

• 90°

If m∠A + m∠B = 90°, then ∠A and ∠B are _____ angles.

• cute

• right

• complementary

• supplementary

∠A and ∠B are supplementary. If the measure of m∠A = 70°, then

m∠B =_____.

• 20°

• 30°

• 110°

• 60°

Which of the following statements is TRUE?

• An angle is formed by two noncollinear rays.

              

• Two points determine an angle.

• An angle divides a plane into two distinct parts.

• Two distinct angles cannot share an interior point.

In the figure at the left, 𝑚∠𝑋𝑌𝑍 = 75°, what kind of angle does it form? 

• acute angle           

• obtuse angle 

•      right angle

• straight angle

All of the following are measures of an obtuse angle EXCEPT:

•         95°               

• 110°               

• 120°

• 190°

Given the figure at the right, if ∠𝐴𝐵𝐶 = 90°, which of the following statements is TRUE?

•        ∠𝐴𝐵𝐶 is an acute angle.             

                          

• ∠𝐴𝐵𝐶 is a right angle.                             

• ∠𝐴𝐵𝐶 is an obtuse angle.

                

• ∠𝐴𝐵𝐶 has no known classification.

Given the figures at the right, what can you conclude about the two angles?

• linear pairs  

•     

        congruent angles 

•  vertical angles

• perpendicular to each other

If BDA ADC, which of these is the angle bisector of BDC?

•  DA   

•     

                  DB             

• DC

• DE

If ADC CDE, which of these is the angle bisector of ADE?

•  DA   

•     

                  DB             

• DC

• DE