Answer:
680700
Step-by-step explanation:
this method can calculate more quickly
How many hundreds go into 30 tens?
1 answer:
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Note: As you can see on the attached picture, I've split the shape into three chunks. By comparing the sides and using some subtraction I came up with some information that will make the problem easier and wrote it in green. If you have any problems following my logic there, feel free to send me a message of comment under this and I'll elaborate.
————
Left Most Chunk:
-The formula for finding the area of a circle is A=πr^2. In this problem we are finding 1/4th of a circle so the formula would look like A=1/4(πr^2).
-Radius(r): 9
-Work:
A=1/4(πr^2)
A=1/4(π9^2)
A=1/4(π81)
A=1/4(π81)
keeping in mind to use 3.14 for pi...
A=1/4(254.34)
A=63.585 sq ft
————
Middle Chunk:
-This is basic area finding (Lenghth x Width)
-Work:
A= l x w
A = 13 x 6
A= 78 sq ft
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Right Most Chunk:
-This is basic area finding (Lenghth x Width)
-Work:
A= l x w
A = 7 x 5
A= 35 sq ft
————
Total Area:
-Work:
63.585 + 78 + 35 =
176.585
————
Answer: 176.585 square feet
Note: As you can see on the attached picture, I've split the shape into three chunks. By comparing the sides and using some subtraction I came up with some information that will make the problem easier and wrote it in green. If you have any problems following my logic there, feel free to send me a message of comment under this and I'll elaborate.
————
Left Most Chunk:
-The formula for finding the area of a circle is A=πr^2. In this problem we are finding 1/4th of a circle so the formula would look like A=1/4(πr^2).
-Radius(r): 9
-Work:
A=1/4(πr^2)
A=1/4(π9^2)
A=1/4(π81)
A=1/4(π81)
keeping in mind to use 3.14 for pi...
A=1/4(254.34)
A=63.585 sq ft
————
Middle Chunk:
-This is basic area finding (Lenghth x Width)
-Work:
A= l x w
A = 13 x 6
A= 78 sq ft
————
Right Most Chunk:
-This is basic area finding (Lenghth x Width)
-Work:
A= l x w
A = 7 x 5
A= 35 sq ft
————
Total Area:
-Work:
63.585 + 78 + 35 =
176.585
————
Answer: 176.585 square feet
The possible distance between the parallel chords whose lengths are 6 cm and 16 cm is 15.5 cm
<h3>How to determine the length between the two chords?</h3>The diameter of the circle is given as:
D = 20cm
Calculate the radius (r)
r = 10 cm
For the chord of length 6 cm;
The distance of chord from the center of the circle is:
Evaluate
d = 9.5
For the chord of length 16 cm;
The distance of chord from the center of the circle is:
Evaluate
D = 6
The sum of both distances is the possible distance between both chords.
Distance = 9.5 + 6
Distance = 15.5
Hence, the possible distances between the chord is 15.5 cm
Read more about chords and circles at:
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