Which figures are polygons? Figure A
Figure B
Figure C
Figure D
Select each correct answer
O Figure A
O Figure B
O Figure C
O Figure D

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

How do you solving the solution of each system using elimination?

How do the number line graphs of the solutions sets of -23 > x and x-23 differ?