Answer:
B.68
Step-by-step explanation:
This is because:
m∠RSQ=64
m∠QST=?
m∠RST=132
To fine the measurement of the missing angle, you must subtract the the Known angle (m∠RSQ=64) from, the total of the known and unknown-(m∠RST=132), to get the difference of 68. To conclude the (m∠QST=68)
