Question

select the protractor measuring an angle that is 80°. figure a figure b figure c figure d o figure a o figure b o figure c o figure d

Explanation:

Step1: Check Figure A

In Figure A, the angle between the two red - marked lines is clearly less than 90°. Counting the degree markings, it is not 80°.

Step2: Check Figure B

In Figure B, starting from the 0 - degree mark on the protractor and moving counter - clockwise, the angle between the two red - marked lines is 80°.

Step3: Check Figure C

In Figure C, the angle between the two red - marked lines is less than 90° but not 80° when we count the degree markings.

Step4: Check Figure D

In Figure D, the angle between the two red - marked lines is 90°.

Answer:

B. Figure B