Surface area of the cylinder = 2 pi r * 40 = 2 pi * 3* 40 = 24 pi
of the cone this is pi * 3 * 5 = 15pi
of the hemisphere this is 1/2 * 4 * pi * 3^2 = 18pi
So the answer is 24pi + 15pi + 18pi = 57pi = 178.98 cm^2
Answer:
x is either 77 or -47
Step-by-step explanation:
Answer:
I think it'll be 5080
Step-by-step explanation:
If the the river is 500 mil longer than the other wouldnt you subtract that by the sum 5580-500=5080
but i dont know if thats right