Answer:
Hi,
Explanation:
Q 4:
Using interior powerpoint circle:
7.5*x=5*12
x=60/7.5
x=8
Answer C
Q5:
using inscribed angles and central angles:
mes ∠DAR= 2* mes ∠DBR=2*34°=68°
Answer B
Q6:
mes ∠ TRS=180°-mes ∠QSR -mes ∠SIR (if I is the intersection of RQ and QS
mes ∠TRS=180°-50°-92°=38°
mes ∠TQS=mes ∠TRS =38°
Answer B