Answer:
50
Step-by-step explanation:
575/11.5=50
The proportion would be 1/3 and x/9. Cross multiplication creates 3x=9. Divide both sided by three, and there are 3 trombones in the orchestra.
Answer:
angle2=23°
angle7=angle5
angle2=angle6
so,angle8=23°
total angle = 180°
angle7=180°-46°=134°÷2=67°
Solution
A=4πr2=4·π·82≈804.24772
Approximately = 804.25