Answer:
square unit
Step-by-step explanation:
The formula for calculating the area of a square when the diagonal is given is :

That is :


square unit
Answer:

Step-by-step explanation:
The formula of a surface area of a sphere:

R - radius
We have

Substitute and solve for R:
<em>divide both sides by π</em>
<em>divide both sides by 4</em>

The formula of a volume of a sphere:

Substitute:

Answer:
x,y - x,y-4
Step-by-step explanation:
x coordinates of a and b remain same but their y coordinates become -4
The answer to the variable b is 708.4