Step-by-step explanation and the Answer:

2.98×100000= 298000
So therefore the answer is 298000.
23 + 2 = 25+65 = 90 degrees
Answer:
never
Step-by-step explanation:
Since the area of the circle will always be a transcendental number and the area of a square has to be an integer, this can never happen in a finite number of steps. Therefore, you cannot square a circle
Answer:
2
Step-by-step explanation:
Using the rule of radicals
×
⇔
, then

= 
=
× 
= 2
20 because radius times height will give you the surface area of the shape