Answer:
r = 6cm
Step-by-step explanation:
Solve for r:


I cant see the picture i can’t help sorry
Answer:
A
Step-by-step explanation:
its all about the angles just subtract the number you have from the total
Answer:
15 Hours
Step-by-step explanation:
It takes 1.5 hours to build 1 birdhouse, so multiply 1.5×10 and you get 15 hours.