All angles add up to 180 and you know you have a right angle which is 90 degree. So 180-90=90 90/2=45
Answer: The unit price is $0.90 per kilogram
Answer:
140.37 in²
Step-by-step explanation:
C = 2πr
42 = 2πr
21 = πr
r = 21/π
A = πr²
A = π × (21/π)²
≈ 140.37 in²
Answer:I don't know this one.
Step-by-step explanation: