Answer:
V ≈ 7850
Step-by-step explanation:
V= πr^2h is the formula
so V = 3.14 * 10^2 * 25
V = 3.14 * 2500 = 7850
depending on what decimal you use for pi, your answer will differ
The area of the square whose diagonal 712 units is 253472 units²
Step-by-step explanation:
You can find area of a square by using one of the two rules:
1. Area of a square = s², where s is the length of its side
2. Area of a square =
, where d is the length
of its diagonal
∵ The length of the diagonal of the square is 712 units
∵ The area of the square = 
∴ The area of the square = 
∴ The area of the square = 253472 units²
The area of the square whose diagonal 712 units is 253472 units²
Learn more:
You can learn more about area of figures in brainly.com/question/6530759
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Answer: The distance is d = 13 .
Step-by-step explanation:
In order to find the distance between the two points, you need the distance formula:
where there is
and
.
-Use the those two points
and
for this formula:

-Then, you start solving:





So, therefore, the result is
.
Polar coordinates (r,ϑ) and Cartesian coordinates (x,y) are related as follows:
Cartesian -> Polar
x = r cos(ϑ)
y = r sin(ϑ)
Polar -> Cartesian
r^2 = x^2 + y^2
ϑ = arctan( y/x)
The polar coo's can be extended to cylindrical by introduction a dimension z - which is perpendicular to the polar plane, it follows that:
z = z
in between the systems (r,ϑ,z) and (x,y,z)
The polar coordinates are particularly useful when a problem has circular or cylindrical symmetry, i.e. it is usually "easier" to perform calculations on a circle (for example) using the polar coordinates.
Step-by-step explanation:
AB(x)/DE=BC/EF
AB/25=28/20
20AB=28×25
20AB=700
AB=700/20
AB=35
SO x=35