The perimeter of a triangle is 50. The length of the longest side of the triangle could be: a)15

b)20

c)25

d)29

In the coordinate plan (-6,9) b (3,9) c (3,3) def is shown in the coordinate plan below

Use the radius you found in part i (r=26.8 cm) with the surface area formula below to find the surface area of the sphere. show your work and round your answer to the nearest tenth. the surface area of a sphere: sa = 4πr^2 self note: 3.8.4

Ineed to know the answer to this algebra question.