Answer:
The surface area is
Step-by-step explanation:
we know that
The surface area of a sphere is equal to
where
r is the radius of the sphere
we have
-----> the radius is half the diameter
substitute
6x2
6x5
8x6
Answer: 29 degrees
Step-by-step explanation:
Isosceles triangles have base angles [and sides] which are congruent.