The dimensions of a property are shown in the figure below.
1 answer:
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To take out terms outside the radical we need to divide the power of the term by the index of the radical; the quotient will be the power of the term outside the radical, and the remainder will be the power of the term inside the radical.
First, lets factor 8:
Now we can divide the power of the term, 3, by the index of the radical 2:
= 1 with a remainder of 1
Next, lets do the same for our second term
:
= 3 with a remainder of 1
Again, lets do the same for our third term
:
with no remainder, so this term will come out completely.
Finally, lets take our terms out of the radical:
We can conclude that the correct answer is the third one.
First, lets factor 8:
Now we can divide the power of the term, 3, by the index of the radical 2:
Next, lets do the same for our second term
Again, lets do the same for our third term
Finally, lets take our terms out of the radical:
We can conclude that the correct answer is the third one.
Answer:
2. b : l
3. 20cm
4. 49
5.
Step-by-step explanation:
<u>Solution 2:</u>
Let cylinder is rolled along 'l':
Height of cylinder , h = length of rectangle = l
Perimeter of base = b
Let 'r' be the radius of cylinder's base:
Volume of a cylinder is given as:
Putting the values:
Let cylinder is rolled along 'b':
Height of cylinder , h = length of rectangle = b
Perimeter of base = l
Let 'r' be the radius of cylinder's base:
Volume of a cylinder is given as:
Putting the values:
Taking ratio:
Solution 3:
Rectangle is rolled along its length to make a cylinder, so height will be equal to its length.
height of cylinder = 20 cm
Solution 4:
Side of square = 7 cm
Height of cylinder =Side of square = 7 cm
7 cm will be the circumference of the circle.
i.e. = 7 cm
Curved surface area of a cylinder:
Putting the above values:
CSA = 7 7 = 49
Solution 5:
As calculated in above step:
CSA = 7
7 = 49
Total surface area =
Calculating value of r:
= 7 cm
Total surface area =
Ratio of TSA: CSA is