The area of the largest cross section of a sphere and the circumference of the sphere are in the ratio 4:1. The radius of the sphere is ___cm. The circumference of the sphere is about ___cm. The area of the largest cross section is about cm. The volume of the sphere is about ___cm​

Step-by-step explanation:

The largest cross-section of a sphere is the center.

So, we have:

Where

Solving (a): The radius

implies that

Express as fraction

Divide by

Make r the subject

Solving (b): Area of the largest cross-section.

Solving (b): Volume of the sphere

the sum of the lengths of any two sides of a triangle is greater than the length of the third side. if you take the three sides of a triangle and add them in pairs, the sum is greater than (not equal to) the third side. if that is not true, then it is not possible to construct a triangle with the given side lengths.

step-by-step explanation:

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0