Im so sorry the picture isnt loading for me -,-
Step-by-step explanation:
Area of circle = πr², π = 22/7 or 355/133. Here it is said to use '3.14'. I will use the same.
Volume = cross-section area * height
Cross-section area of bigger one = π(3m)²
Volume = π(3m)² * height
= 9π * 5 m³ = 45π m³
Cross-section area of smaller one= π(1m)²
Volume = π(1m)² * height
= π * 5 m³ = 5π m³
Since a large part(cylinder of 1 m is not here):
Required volume = total volume - volume of smaller circle(cylinder)
= 45π - 5π m³
= 40π m³ = 40(3.14) m³
= 125.6 m³
Answer:
The height is 20 cm.
Step-by-step explanation:
First, we have to know that the volume formula is V = πr²h and the base area of cylinder is a circle. So we can let πr² be 77 cm² . Then we have to substitute the following values into the formula :
Let πr² be 77,
Let v be 1540,
So, 75% is the same as 3/4 right? The best way to do this would be to first find 1/4.
240/4 = 60
Now you know that 1/4 equals 60.
but.... you have 3/4
60 x 3 = 180
180 kids voted for James.
Answer:
The area of window is 49 5/6 ft²
Step-by-step explanation:
Given : A rectangular window with width ft and height ft.
We have to find the area of the window.
Since, The window is in shape of a rectangle so area of window is equal to area of rectangle.
Area of rectangle = Length × breadth
Here, Length = ft
and height= breadth = ft.
Substitute, we have,
Area of rectangle =
Simplify, we have,
Area of rectangle =
writing in mixed fractions, we have,
Area of rectangle =
Thus, The area of window is 49 5/6 ft²
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