Note:
The area of a circle with radius r is πr².
An entire circle has a central angle of 360°.
For the sector with radius = (3+4) = 7cm and a central angle of 120°, the area is

For the sector with radius = 3 cm and a central angle of 120°. the area is

The area of the shaded sector (see the figure) is

Answer:
To set up a venn diagram, you need the following details below
- Set A = ( 3, 6, 9, 12, 15 )
- Set B = ( 1, 3, 5, 7, 9. 11, 13, 15 )
- A∩B = ( 3, 9 )
- U = (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16)
<h3>Meaning of a set and a venn diagram</h3>
A set is the orderly collection of elements, material, numbers and items that satisfy a condition.
A set could be finite or infinite.
A venn diagram is a diagramatic representation of a set using circles. it mostly represents a finite set.
In conclusion, you can use the details above to draw your venn diagram.
Learn more about venn diagrams : brainly.com/question/20795347
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A, because negative is not rational
Hope this helps and hope you can read it, if not let me know :)
So you wanna find the area of each surface:
For the large square surface in the top you do 12*15=180 and there are two large squares faces so you multiply 180 by 2 which equals 360 then you find the small rectangle faces: 5*15=75 and multiply by 2 Bc there are 2 faces like that so it would be 75*2=150 then for the last faces you do 12*5= 60 *2= 120 at the end I add all of the faces up, 360+150+120=630