Sqrt is a parallelogram. if m∠qst = 72°, which of the following statements is true?

a) m∠sqr = 72°
b) m∠qrt = 72°
c) m∠qsr = 36°
d) m∠trq = 108°

i think b and c are correct but clearly one of them isn't, i'm probably overthinking,

B is correct not C

Step-by-step explanation:

In a parallelogram opposite angles are equal means Angle QST = Angle QRT.

Also in parallelogram diagonals bisect each other means Angle QSR= Angle TRS but not Angle QSR = Angle TSR

B) m∠QRT = 72°

Step-by-step explanation:

step-by-step explanation:

cats

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional