
Step-by-step explanation:
Given: r = 4 cm
The surface area A of a sphere is given by


Answer:
we use side of triangle to find area and divide by 2 so first one is 15*15+ 8*15/2 225+60=285
The earth's circumference is: 24,901miles
Your answer is true , it can be stated by putting it into simplest form
You would need to come in 583.6 or 584 times