Find the lateral area for the cylinder with the given measurement. r = 6, h = 20
2 answers:
Answer:
Lateral Area (L) of the cylinder is given by:
....[1]
where,
r is the radius of the cylinder
h is the height of the cylinder.
As per the statement:
Given:
r = 6 units , h = 20 units
Substitute the given values and use in [1] we have;
Simplify:
square units.
Therefore, the lateral area for the cylinder with the given measurement is, 753.6 square units.
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Step-by-step explanation:
The area of a circle is given by :
A = πr²
r is the radius of the circle
(4) Diameter = 22 cm
Since, radius = diameter/2
r = 11 cm
Now, area of the circle,
(5) Diameter = 30 cm
Since, radius = diameter/2
r = 15 cm
Now, area of the circle,
(6) Diameter = 4cm
Since, radius = diameter/2
r = 2 cm
Now, area of the circle,
So, the area of circles 4,5 and 6 are 380.13², 706.85² and 12.56² respectively.
Answer:
(x - 3)² + (y + 9)² = 25
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k ) are the coordinates of the centre and r is the radius
Given area = 25π , that is
πr² = 25π ( divide both sides by π )
r² = 25 ( take the square root of both sides )
r = = 5
With centre (h, k) = (3, - 9 ) and r = 5 , then
(x - 3)² + (y - (- 9) )² = 5² , that is
(x - 3)² + (y + 9)² = 25
Answer:
Step-by-step explanation:
Find the gradient of the equation
The equation will have the gradient -3x
Use the general equation of a line, and substitute the coordinates in to find the y-intercept.
(4, -6)
(0, 6)
The equation of the line is