Aquiz has four true-false questions. how many ways can a student answer all the questions?

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¯¯¯¯¯¯¯¯)?

What is not true about kl and mn? what is mn? (show )

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?