Answer:
-273c
Step-by-step explanation:
1. 15x
2. 21
3. 4
You’re welcome
For question one, you would need to use the formula pi r ^2. So first you have 4.5, which is your radius(stands for r). Then you square it, which is 20.25. Then, you multiply 20.25 with pi. Then for circumference, you do 2 x pi x the radius which is 4.5. So for area, you get 63.62. Then for circumference you get 28.27.
For question 2, it is basically the same steps but instead you a diameter, not a radius. To get the radius, divide by 2, which the radius will be 6. Then from there, the radius is 6, and you solve the question.
How long will it take to walk from the first floor to the eightheighth floor (at the same pace, assuming that all floors have the same height).
8080 seconds
