If line AB is parallel to line CD what theorem can be used to show that triangle ACD is congruent to triangle CAB

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .

175

step-by-step explanation:

2 inches x 10 miles = 200 miles - 3 inches = 175

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2